Hair Transplant Scar

Reviewed by Dr. Emin Gül · Reviewed in accordance with our Editorial Standards.

Hair loss affects more than just appearance—it gradually reshapes identity and self-confidence. For those experiencing permanent hair loss, a hair transplant offers a long-term solution. Defined simply, a hair transplant is a surgical procedure in which healthy hair follicles—typically taken from the back or sides of the scalp—are relocated to bald or thinning areas. It’s a restorative method often chosen when medications and non-surgical treatments are no longer effective.

While hair transplantation restores hair, it doesn’t always leave the skin untouched. Hair transplant scarring is a natural consequence of any surgical technique that involves tissue disruption as indicated in ‘Hair Transplantation’, Patrick M. Zito, (2024). These scars from hair transplant vary in size, visibility, and texture based on the method used, the surgeon’s expertise, and individual healing response as stated in ‘Follicular unit extraction: hair transplant without linear scar’, Antonio Ruston et al. (2024).

It is totally normal to have scars after a hair transplant. Even the most refined techniques involve some degree of scarring. In a FUE hair transplant, patients develop dot-like scars at the donor site, whereas FUT often results in a linear hair transplant surgery scar. Minor scarring is observed in over 90% of FUE cases, although most fade considerably and become nearly invisible over time as evidenced in ‘Direct Hair Transplantation: A Modified Follicular Unit Extraction Technique’, Sethi & Bansal, Journal of Cutaneous and Aesthetic Surgery, (2013).

In many cases hair can grow on scars. Hair follicles transplanted into scarred skin still enter normal growth cycles and even improve skin quality over time as indicated in ‘Anagen hair follicles transplanted into mature human scars remodel fibrotic tissue’, Higgins et al.,NPJ Regenerative Medicine, (2023).

Can Scars on the Head Affect Hair Transplant Results?

Yes, scars on the head can affect hair transplant results, mainly because scar tissue has reduced blood flow and flexibility, which impact graft survival. Successful transplants on scars are still possible—especially when performed by experienced surgeons using precise techniques like FUE or DHI. Follicles grow in mature scars, though results require smaller grafts, more spacing, or additional sessions. With proper planning, even scarred areas achieve natural-looking outcomes.

Why Does Hair Transplant Leave Scars?

Hair transplants leave scars because they involve minor surgical incisions in both the donor and recipient areas. Each incision – whether for extracting or implanting follicles – triggers the skin’s natural healing process, which leads to scar formation. Even with minimally invasive techniques like FUE (Follicular Unit Extraction), where tiny punches are used to remove follicles, small dot-like scars remain in the donor zone. In the case of FUT (Follicular Unit Transplantation), a linear strip of skin is removed, often resulting in a visible hair restoration scar.

Scarring varies depending on technique, skin type, healing ability, and surgeon skill. FUE results in hundreds of micro-scars, though they are usually scattered and fade over time, while FUT typically leaves a single linear scar that widens if healing is poor as stated in ‘Follicular Unit Extraction: Evolution of a Technology’, Journal of Transplantation Technologies & Research, Rassmann & Pak et al. (2016).

Scarring after hair transplant is a normal outcome of any surgical procedure involving skin incisions. The goal is to minimize visibility—something that modern techniques and experienced clinics help achieve effectively.

What Are the Types of Scars After Hair Transplant?

Hair transplant surgery, while generally safe and effective, results in various types of scarring depending on the technique used, skin type, healing response, and surgical precision. 

• Linear Scar: Linear scars commonly come from the FUT (Follicular Unit Transplantation) technique. FUT involves removing a strip of skin from the donor area, typically from the back of the scalp. This results in a single linear scar, which stretches if the closure is under tension. When performed skillfully with trichophytic closure, the scar will be minimal and concealable under longer hair.
• Dot-like Scar: Dot-like scars commonly come from the FUE (Follicular Unit Extraction) technique. FUE extracts individual follicular units using micro-punches, leaving behind small circular scars—often called “white dots.” Overharvesting or improper technique make them more visible.
• Hypertrophic Scar: Hypertrophic scars form as a result of any surgical incision, particularly from the FUT technique. It is a raised, thickened scar that remains within the boundaries of the incision. It forms due to excess collagen during healing, often in individuals with a genetic predisposition or poor wound care.
• Keloid Scar: Keloids are the overgrowth of scar tissues that extends beyond the original wound boundary, usually occurring after healing of a skin injury. Keloid scarring is generally associated with the FUT technique. While uncommon, they form in individuals with darker skin tones or a family history of keloid formation as evidenced in ‘Keloids and Hypertrophic Scars: Update and Future Directions’, Chenyu Huang et al., (2013).
• Atrophic Scar: Atrophic Scars form as a result of over-harvesting of the donor area during a FUE hair transplant. These depressed or sunken scars form due to tissue loss and poor collagen repair. Often related to aggressive graft extraction or infection post-surgery.
• Stretch-back Scar: Stretch-back scars commonly come from the FUT technique. If the skin is too tightly closed after FUT strip removal, the wound stretches back over time, widening the scar. This is more likely in patients with tight scalps or poor scalp elasticity.
• Cobblestoning: Cobblestone scars form as a result the FUE technique or from a poorly executed DHI technique. Raised, uneven skin texture resembling cobblestones occurs when grafts are implanted too superficially or if the skin doesn’t heal flat. Improper depth control is often the culprit.
• Pitting: Pitting scars form as a result of the FUE or from the DHI technique. Pitting refers to small depressions at the graft site, caused by deep insertion of follicles. This creates a mottled appearance on the skin surface.
• Pluggy Scars: Pluggy scars form as a result of outdated punch grafts or mini/micrografts Older transplant techniques (pre-2000s) used large grafts or punches, leading to unnatural clumping and visible pluggy scars. These scars are now often corrected with modern FUE revisions.
• White Dots: White dots form as a result the FUE technique. It is caused by minor hypopigmentation where the skin heals lighter than surrounding tissue. While FUE offers a less invasive alternative to FUT, it leads to visible dot-like scars if performed at a high density or with large punches as indicated in ‘Follicular unit extraction: minimally invasive surgery for hair transplantation’, Rassman et al. (2002). 

How Does FUE Hair Transplant Result in Dot Like Scarring?

FUE hair transplant results in dot-like scarring due to the way individual follicular units are harvested from the donor area – typically the back or sides of the scalp. During the procedure, a micro punch tool (usually 0.7–1.0 mm in diameter) is used to extract each follicle one by one. Although minimally invasive, this technique still leaves behind small circular wounds. As these punctures heal, they often result in tiny, dot-like scars known as FUE scarring.

FUE hair transplant scars are generally spread out and far less visible than the linear scar left by FUT (Follicular Unit Transplantation). Factors like poor wound healing, overly aggressive harvesting, or use of larger punch sizes make the scarring more apparent – especially if the patient wears their hair very short. With optimal technique, visible scarring occurs in about 5–7% of patients undergoing a FUE hair transplant, though the cosmetic impact is usually minimal as evidenced in ‘Minimally Invasive Hair Restoration Surgery: FUE and Its Advancements’, Rassman WR, Pak JP, Kim J, et al. (2019). 

As for permanence, FUE scars do not completely disappear, but they often fade visibly over time. Their visibility largely depends on skin type, punch size, post-operative care, and the patient’s healing response. 

How Does the FUT Technique Lead to a Linear Scar on the Scalp?

The FUT technique leads to linear scarring on the scalp because it involves surgically removing a strip of skin from the donor area—usually the back of the head—to harvest follicular units. After the strip is removed, the incision is sutured or stapled closed, leaving behind a linear scar, commonly referred to as FUT scarring. 

FUT hair transplant scars occur because the procedure requires cutting through both the epidermis and dermis. The body naturally forms a fibrous scar as it heals the incision, resulting in a straight line that varies in width depending on surgical technique, scalp tension, and the individual’s healing response. 

These linear scars are permanent, though they become less visible over time. Hair growing above and below the scar helps camouflage it, especially for those who wear their hair longer. 

While a FUT hair transplant offers high graft yields, its primary drawback is the visible linear scar, which pose aesthetic concerns, particularly in patients who prefer shorter hairstyles as mentioned in ‘The Logic of Follicular Unit Transplantation’, Bernstein RM, Rassman WR, (2006).

How Small Does a DHI Hair Transplant Leave the Dot Scars?

Direct Hair Implantation (DHI) is a modified form of FUE and is known for leaving extremely small dot-like scars, typically ranging from 0.6 to 0.9 millimeters in diameter. These scars are caused by the micro punches used to extract individual hair follicles from the donor area. 

Because DHI uses even finer tools than traditional FUE – particularly during implantation with a Choi Implanter Pen – the trauma to the skin is minimal, leading to barely visible, pin-sized marks that often heal seamlessly.

In most cases, these dot scars are nearly undetectable to the naked eye, especially when the surrounding hair is longer than a few millimeters. Over time, the marks often fade considerably and blend with the scalp’s natural texture and pigmentation. In individuals with very light or very dark skin tones, minimal hypopigmentation occasionally is noticed under direct lighting.

Punch size directly influences scar visibility, with smaller diameters resulting in lower incidence of visible scarring in patients undergoing FUE-based techniques like a DHI hair transplant as indicated in ‘FUE vs. Strip: Graft Quality and Donor Healing Outcomes in Hair Transplantation’, Avci P, et al. (2013).

Which Factors Influence the Severity of Dot Scarring After Sapphire FUE?

The severity of dot-like scarring after a Sapphire FUE hair transplant is primarily influenced by several key factors: punch size, surgical precision, skin type, healing response, and post–operative care. Among these, the use of sapphire blades instead of traditional steel ones is a defining feature—these sharper, finer blades allow for cleaner incisions, minimizing tissue trauma and potentially reducing visible scarring.

The smaller and more precise micro-channels created by sapphire blades lead to faster healing and less inflammation, which directly translates to less pronounced scarring. Patients with lighter skin tones or thinner dermal layers are more prone to visible marks, regardless of the technique. 

Sapphire blade incisions are associated with lower rates of hypertrophic and visible dot scarring compared to traditional FUE tools, thanks to their precision and biocompatibility ‘Comparative Analysis of Steel vs. Sapphire Blades in FUE Hair Transplantation: Healing and Scarring Outcomes’, Uebel CO, et al., (2020). 

While no hair transplant is completely scar-free, a Sapphire FUE hair transplant offers one of the most advanced solutions for reducing visible dot scars due to its refined toolset and controlled incision process.

When Do Dot Like Scars Become Visible After a Robotic Hair Transplant?

Dot-like scars from a robotic hair transplant, such as those performed using the ARTAS system, typically become visible within 2 to 4 weeks after the procedure. These scars are a byproduct of punch excisions used to harvest follicular units from the donor area – much like in traditional FUE – though performed by robotic precision.

In the early stages (first 7–10 days), the area appears red or scabbed, masking the true appearance of any scarring. As healing progresses, especially after crusts fall off, small hypopigmented dots (lighter skin spots) begin to emerge if they are going to be visible at all. These scars often become more noticeable under close-up inspection or with short haircuts by week 3 or 4.

While robotic systems improve precision and reduce transection rates, scarring is still possible, and its visibility depends largely on skin type, graft density, and punch diameter as stated in ‘Robotic Hair Restoration’, Avram, M. R., & Rogers, N. E., (2014).

In most patients, these dot-like scars formed after a robotic hair transplant fade over time, becoming much less visible by the 3- to 6-month mark, especially with proper post-op care and good wound healing capacity.

How Does Stem Cell Hair Transplant Avoid Visible Scarring?

Stem cell hair transplants avoid visible scarring because they do not require the full extraction of follicular units, unlike traditional FUE or FUT methods. Instead, a micro-punch biopsy (typically under 2 mm) is used to harvest a small sample of tissue rich in hair follicle stem cells. These cells are then processed and injected into the balding areas, where they stimulate new hair growth. 

Since there is no need for large incisions or graft harvesting from the scalp, a stem cell hair treatment is minimally invasive and does not create linear or dot-like scars commonly seen in standard hair transplant techniques.

Autologous stem cell injections stimulate new blood vessel growth and reduce fibrosis. A clinical study on scarred scalps stated in ‘Stem cell therapy prior to follicular unit hair transplantation on scarred tissue: a novel approach to a successful procedure’, Felix Mircea Popescu et al., (2024)

showed that pre-treatment with stem cells improved vascularization by 70% and reduced fibrotic tissue by 50%, leading to smoother healing.

How Does Micro FUE Transplant Minimize Visible Scarring?

Micro FUE minimizes visible scarring by using ultra-fine punches—typically 0.6 mm to 0.8 mm in diameter—to extract individual follicular units with exceptional precision. These micro-sized tools reduce the amount of tissue trauma during extraction, which in turn limits scar formation and promotes faster healing.

Unlike traditional FUE, which often uses punch sizes around 1.0 mm, the smaller diameter in a Micro FUE hair transplant leads to less noticeable dot-like scars. The wounds are so fine that they generally heal within a few days without leaving visible traces, especially when the patient has good skin elasticity and follows proper post-operative care.

Patients treated with smaller punch diameters in FUE reported substantially lower visibility of scarring under dermoscopy compared to larger punches as cited in ‘The edge out punch: An advancement that reduces transections in follicular unit excision hair transplantation’, Roberto Trivellini, Aditya K Gupta, (2020). The same study also noted higher patient satisfaction due to the aesthetic advantage of minimized scarring.

What Causes Scars on the Scalp After a Hair Transplant?

Scars on the scalp after a hair transplant are caused by the body’s natural wound-healing response to incisions made during graft extraction and implantation. Whether the procedure involves FUT or FUE, both techniques require breaking the skin. As the skin heals, collagen is deposited, forming scar tissue.

Scarring after a hair transplant depends on several factors. FUT usually leaves a linear scar from strip removal, while FUE causes dot-like scars at each extraction point. The size and control of the punches, skin type, and healing ability all affect how visible scars become. Poor post-op care or excess tension worsen scarring, and a surgeon’s skill level plays a key role—precise technique reduces trauma and improves healing outcomes.

Whether a hair transplant leaves permanent scars depends on these factors. Most patients experience only minimal scarring that fades over time – especially after FUE or advanced techniques like Sapphire FUE or Micro FUE. In rare cases, hypertrophic or keloid scarring develops and persists long-term.

While scarring is a normal part of healing, advanced techniques, proper patient selection, and refined post-operative protocols notably reduce permanent visible scarring as highlighted in ‘Scar Revision’, Sharma et al., Indian Journal of Plastic Surgery, (2019).

Does a Hair Transplant Scar Usually Cause Pain?
Typically, scars from hair transplants do not cause long-term pain. Mild tenderness is present during early healing, but chronic hair transplant pain is rare unless complications like nerve involvement or abnormal scar formation occur.

When Do Scars Appear After the Hair Transplant Procedure?

Scars from a hair transplant typically begin to appear within the first few days after the procedure—usually around 3 to 5 days post-op. This is when the healing process starts and the body begins forming tiny scabs or marks at the graft extraction and implantation sites. These early signs of scarring are part of normal recovery and often fade over time. Visible or permanent scarring develops later depending on the technique used (FUE, FUT, etc.), surgeon skill, and individual healing response.

Is Scarring a Common Side Effect of Hair Transplant Surgery?

Scarring is one of the common hair transplant side effects but often minimal – especially with FUE-based techniques, which are known for their dot-like, less noticeable scars. Most patients experience mild scarring, and in skilled hands, scarring is minimized to the point of being nearly undetectable.

Where Do Hair Transplant Scars Usually Form on the Scalp?

Hair transplant scars typically form in the donor area, most often the back and sides of the scalp, where follicular units are extracted. The likelihood and visibility of scarring depend on the technique used, skin type, and healing response. Here’s where scarring usually appears.

• Occipital Region (Back of the Head): Scarring is more common and noticeable in the donor area than scarring in the recipient area as indicated in ‘Scar Revision’, Sharma et al., (2019). Prone to linear (FUT) or dot-like (FUE) scars due to frequent incisions and extraction depth.
• Temporal and Parietal Sides (Side of the Scalp): Used when additional grafts are needed. Develops smaller scars depending on the number of extractions and tool size.
• Recipient Areas (Hairline, Crown, Temples): Scarring here is less common but possible—especially if incisions are placed too close or healing is disrupted. Often results in minor hypopigmentation or texture changes.
• Body Hair Donor Sites (Beard, Chest, Legs): Less common but associated with higher risk of visible scarring, since these areas heal differently and are less vascularized.

When Does Scars Require Medical Attention?

Scars that become raised, red, itchy, or continue enlarging beyond the wound borders need medical attention, as they indicate hypertrophic or keloid scarring.

Can Eyebrow Hair Transplant Scars Become Less Visible Over Time due to Skin Regeneration?

Yes, eyebrow hair transplant scars can become less visible over time due to the skin’s natural regeneration process.

This happens because the body gradually replaces damaged tissue with new skin cells, especially in areas with good blood flow like the face. Collagen remodeling, combined with post-procedure care (like avoiding sun exposure and using scar-reducing treatments), helps flatten and fade scars. Over months, these changes make scars in an eyebrow transplant less noticeable, particularly when modern techniques like DHI or micro-FUE are used to minimize trauma to the skin.

How Noticeable Are Sideburn Hair Transplant Scars in the Long Term?

In the long term, sideburn hair transplant scars are typically minimal and often barely noticeable, especially when advanced techniques like FUE or DHI are used. These methods extract individual follicles, leaving behind small dot-like scars that fade over time—particularly in areas like the sideburns where hair density helps conceal them. If improper technique is used or the patient has poor healing response (e.g., keloid tendency), some visible scarring occurs. Overall, with proper surgical skill and post-op care, long-term visibility of a sideburn hair transplant scar is low.

Can You Minimize Scarring in the Moustache Area After a Hair Transplant?

Yes, you can minimize scarring in the moustache area after a hair transplant. The most effective ways include using minimally invasive techniques like DHI or Sapphire FUE, which require smaller incisions and allow for more precise graft placement. 

After a moustache hair transplant proper post-operative care, such as avoiding facial movement, maintaining hygiene, and using prescribed ointment following a mustache hair transplant plays a vital role. Refined surgical technique and aftercare significantly reduce visible scarring in facial hair transplants as evidenced in the study ‘Beard and Moustache Reconstruction’, Kapil Dua et al., Indian Journal of Plastic Surgery, (2019).

Can Scarring from a Beard Hair Transplant Fade Over Time?

Yes, scarring from a beard hair transplant can fade over time, especially when modern techniques like FUE or DHI are used. These methods leave behind tiny, dot-like scars that often become less visible as the skin regenerates and pigment evens out. Facial skin typically heals faster due to its rich blood supply, contributing to improved scar outcomes. The visibility of a beard transplant scar depends on factors like skin type, aftercare, and the surgeon’s skill.

While scarring is inevitable to some degree, skilled execution and proper healing conditions make scars from a beard transplant virtually unnoticeable over time as stated in ‘What’s New in Facial Hair Transplantation? Effective Techniques for Beard and Eyebrow Transplantation’, Anthony Bared, Facial Plastic Surgery Clinics, (2019).

How Long Do Scars Last After Surgery?

Scars after a hair transplant typically begin to form a few days after surgery and gradually fade over time. In most cases, mild scarring becomes less visible within 2 to 4 weeks, while deeper or more noticeable scars take 6 to 12 months to flatten and fade visibly.

Several factors influence how long scars remain visible after a hair transplant. The surgical technique plays a major role – FUT typically leaves a linear scar, while FUE results in smaller, dot-like marks. A patient’s skin type matters; individuals with darker or very fair skin experience more prominent scarring. 

Additionally, the body’s natural healing response — shaped by age, genetics, and immune function — affects scar visibility. Poor post-operative care, including scratching, sun exposure, or infection, worsen scarring. Lastly, scars in tension-prone or oily areas like the nape or temple often take longer to fade. Here is a timeline overview of the scarring process following a hair transplant procedure. 

Scarring starts around day 3 to day 5, then it peaks between day 7 to day 10 (as crusting forms). Scars fade noticeably between 2 weeks to 3 months and most scars settle between 6 to 12 months

Proper technique and patient selection play key roles in minimizing long-term visible scarring following hair restoration surgery as indicated in ‘CME article Part II. Hair Transplantation: Surgical Technique’, Jimenez et al., (2021). 

What Are the Best Methods for Hair Transplant Scar Removal?

Hair transplant scar removal involves a variety of medical and cosmetic treatments aimed at minimizing or eliminating visible scarring caused by procedures such as FUT or FUE. The effectiveness of each method depends on scar type, location, skin type, and how the body heals.

• Fractional CO2 Laser Resurfacing: This technique uses laser energy to create micro-injuries in the skin, which stimulate collagen production and improve skin texture. It’s effective for both linear and dot-like scarring. Considerable improvement was seen in the treatment of traumatic scars using fractional CO2 lasers as indicated in ‘Efficacy and safety of fractional CO2 laser resurfacing in non-hypertrophic traumatic and burn scar’, Majid et al., (2015).
• Microneedling with PRP (Platelet-Rich Plasma): Microneedling creates controlled micro-injuries while PRP accelerates healing by delivering growth factors. Together, they improve scar texture and skin regeneration.Improved scar appearance was observed when microneedling was combined with PRP therapy as stated in the research ‘Platelet-Rich Plasma Plus Microneedling for Scar Management: Introduction to an Innovative Technique and Initial Results From 107 Patients’, Gioia S Kouthoofd et al., (2025).
• SMP (Scalp Micropigmentation): SMP is a cosmetic tattooing technique that deposits pigment into the scalp to camouflage scars, especially effective for FUE dot scarring. It doesn’t remove scars but disguises them as indicated in ‘Combining scalp micropigmentation (SMP) with hair transplantation’, William R. Rassman et al., (2016). This technique is best for patients who keep their hair short and want to blend visible scars with surrounding follicles.
• Surgical Scar Revision: This involves excising the old scar and re-closing the skin in a more refined way to reduce visibility. Most suitable for linear scars from FUT procedures. Surgical scar revision should only be performed by experienced surgeons, as poor technique worsen the scar as mentioned in ‘Scar Revision’, Jessica E. et al., (2023).
• Punch Graft Excision and Redistribution: Used mainly for pluggy or cobblestone scars, this method involves removing scarred grafts and redistributing follicles. It’s labor-intensive but effective for older transplant scars. It is recommended for scars from outdated punch graft techniques as noted in ‘Methods to improve old results of punch hair grafting’, RE Nordström, (1983). 
• Silicone Gel or Sheets: Over-the-counter silicone-based products soften hypertrophic scars and reduce redness. Silicone gels’ effectiveness in improving scar pliability and reducing elevation has been confirmed in the study, ‘International Clinical Recommendations on Scar Management’, Gold et al., (2000).
• Corticosteroid Injections: These are commonly used for raised or keloid scars. They work by reducing inflammation and flattening the scar over time. Professional guidance to avoid skin thinning is required as evidenced in ‘The application of corticosteroids for pathological scar prevention and treatment: current review and update’, Meiying Sheng et al,. (2023).
• Hair Transplant Over Scarred Area: For patients with visible FUT or FUE scars, surgeons implant new hair follicles into the scar tissue, improving coverage and overall appearance. Graft survival in scarred tissue is lower due to reduced blood supply as mentioned in the study ‘Hair follicle transplantation on scar tissue’, Jung et al., (2014).

What Are the Hair Transplant Scar Removal Costs?

Hair transplant scar removal costs vary depending on the treatment method, clinic reputation, location, and severity of the scar. Below is a cost-based overview of the most common scar correction options.

• Fractional CO2 Laser Resurfacing: The cost range of fractional CO2 laser resurfacing is between €250 – €600 per session. Multiple sessions are required depending on scar depth.
• Microneedling with PRP (Platelet-Rich Plasma): The cost range of a combination of microneedling with PRP treatment is between €500 – €800 per session. Often sold in packages of 3–5 sessions for better results.
• SMP (Scalp Micropigmentation): The cost range of SMP is between €400 – €1,200 depending on scar size and area. This technique is best for FUE scars or visible spots with no hair growth.
• Surgical Scar Revision: The cost range of a surgical scar revision is between €700 – €1,500. The treatment is best for large or linear FUT scars and requires surgical expertise.
• Punch Graft Excision and Redistribution: The cost range of punch graft excision and redistribution is between €1,000 – €2,000+. The treatment is best for older hair transplant scars or visible cobblestoning.
• Silicone Gel: The cost range of silicone gel is between €20 – €60 per unit. The treatment requires daily application for several months to show improvement.
• Corticosteroid Injections: The cost range of corticosteroid injections are between €100 – €300 per session. Sessions are usually spaced over weeks or months depending on scar response.
• Hair Transplant Over Scarred Area: The cost range of a hair transplant over a scarred area is between €1,500 – €4,000. Success depends on blood supply in the scarred region – usually used in conjunction with other treatments.

Can Hair Grow on Scars?

Yes, hair can grow on scars, but not typically through scar tissue naturally. Scar tissue, especially if it’s deep or fibrotic, lacks healthy hair follicles and has a compromised blood supply, making natural regrowth unlikely in most cases. In cases of superficial scarring, some hair follicles near the periphery of the scar survive, but dense or atrophic scars rarely support natural hair growth.

Hair follicles do not regenerate in full-thickness scar tissue unless aided by advanced treatments such as hair transplantation, which involves implanting healthy follicles into the scarred area. This is possible because transplanted grafts establish microcirculation within the scar, allowing hair to grow successfully, though results vary depending on scar thickness and vascularization as indicated in ‘Scars mended using transplanted hair follicles in Imperial College London study’, Caroline Brogan, (2023). 

How Do Scars from Hair Plugs Compare to Modern Hair Transplant Scars?

Hair plug scars – a legacy of outdated transplant methods from the 1970s–1990s – are typically large, round, and irregularly spaced. These “pluggy” scars result from 4–5 mm punch grafts that remove chunks of scalp tissue, leaving behind obvious circular scars on both donor and recipient areas. Visually, they resemble polka-dot patterns and are highly noticeable, especially under short hairstyles.

Modern techniques like FUE and DHI use micro punches measuring 0.6–1.0 mm, resulting in tiny dot-like scars in the donor area. These are uniform, more dispersed, and generally invisible once the surrounding hair regrows. When Sapphire FUE is used, even the recipient site incisions are finer, improving scar healing and minimizing long-term visibility.