Keloids, Dark Skin and a Hair Transplant: What Decides It

Two things are true at once, and most pages about this tell you only one of them. Black patients form keloids far more often than white patients. And the idea that every Black patient will scar badly after surgery is a myth. This page holds both, and then says what actually decides it for you.

The number, and the myth

A network meta-analysis of eight studies covering 31,964 keloids and 373,390 people without keloids found the pooled odds of keloid formation among Black individuals to be 6.14 times those among White individuals, with a 95 percent confidence interval of 3.75 to 10.07.^[1,2]

Six times the odds is a real difference and we are not going to soften it. It is also an odds ratio from general populations, not a rate after hair transplants, and it does not say six times what — the underlying rate varies between the studies pooled. Keloid scarring occurs more often in Black patients than in white patients; the reason for the difference is not established.^[2]

A review of cosmetic surgery in Black patients states that the myth that all Black patients develop keloids or pigment changes after surgery should be dispelled, but that in patients with a history of keloid formation or hypertrophic scarring, elective cosmetic procedures should be either withheld or performed with extreme caution.^[3]

That sentence is thirty years old and it has not been improved on. It contains the whole decision: the question is not your ancestry, it is your history. Have you, or has anyone in your immediate family, formed a raised scar that kept growing after a piercing, a cut, a vaccination, acne? That is the question a clinic should ask before anything else, and it is one of the six on our before you book page.

What a keloid is, and what it is not

A review of keloids states that they extend past the area of trauma and once present tend to remain stable; that they are found most commonly on the ear lobes, shoulders, upper back and mid-chest; and that although many treatments exist, most have had limited success.^[2]

The defining feature is the first one: a keloid grows past the wound. A hypertrophic scar is raised but stays within the original injury and often flattens with time; a keloid does not respect the edge. Notice too where they favour: earlobes, shoulders, upper back, chest. The scalp is not on that list. That does not make scalp keloids impossible — the next section is about exactly that — but it means the site of this operation is not the site keloids like best, and a clinic quoting you a body-wide multiplier as though it applied to the back of your head is not reading the literature carefully.

How often it follows this operation

Keloid scarring is described as a rare complication of hair transplantation, usually associated with strip harvesting rather than follicular unit extraction. It has nevertheless been reported at the donor site after follicular unit extraction, including one extensive case, and one report advises particular awareness in patients with previous keloidal tendencies. A scoping review found hypertrophic scarring or keloid formation to be the most common donor-site complication after strip surgery, at up to 15.1 percent.^[4,5,6]

Read that as three separate facts. Keloid after any hair transplant: rare. After strip surgery, where a long incision is closed under tension: the most common donor complication, at up to fifteen per cent in the worst-reporting series. After follicular unit extraction, where each wound is a dot: two published cases, both worth reading precisely because they are unusual, and one of them says in as many words that the patient had a keloidal tendency.

What none of these gives you is a figure for Afro-textured patients specifically. We looked; it has not been published. Anyone quoting you a percentage for your risk is either extrapolating from general keloid prevalence or making it up.

What screening actually means

Three things, and the first is worth more than the other two together.

• The history. Your own raised scars and your family’s. Where, after what, did it keep growing, did it ever settle. This is the question the 1993 review makes decisive, and it costs nothing.
• Looking. Earlobes, chest, shoulders, the back of the neck — the places keloids prefer — and the scalp itself for any previous scar.
• A test extraction. A small number of grafts taken and the donor site watched for some months before a full session. Clinics that offer this describe ten to twenty grafts; that figure is practice, not a published protocol, and we say so. It is the same logic as the test session for scarring alopecia on our page about why transplants fail.

What screening does not do is turn a keloid history into a number. With a strong history the published advice is to withhold the operation or proceed with extreme caution; what “extreme caution” consists of is not defined anywhere, and we would rather tell you that than invent it.

The other marks dark skin can carry from this operation

Keloids get the attention; two quieter things are more common.

Pale dots. Follicular unit excision is not scarless. Each punch takes the follicular melanocytes out with the graft, and the wound can heal as a small pale dot — reported as more visible in darker skin phototypes and with short hairstyles. The review that documents this grades it common but gives no incidence figure.^[7,8]

The largest published series of follicular unit excision in patients of African descent used 18 and 19 gauge punches throughout — nominally about 1.1 to 1.3 mm. A 2026 complications review lists punches over 1 mm as a risk factor for donor-site hypopigmentation in darker skin phototypes, and recommends 0.8 to 0.9 mm. No published work reconciles the two.^[7,9] Ask what punch is used on you and why; there is a genuine trade-off here and a clinic should be able to describe it.

Darkening. Post-inflammatory hyperpigmentation — skin darkening where it was inflamed — is named in the skin-of-colour literature as a complication that needs special attention after dermatologic procedures generally. We could find no study of it after hair transplantation specifically, so we will not give you a rate or a timeline for it. It is on this page because it is real and because nobody else mentions it.

Bumps at the nape: the condition that sits on the donor area

Acne keloidalis nuchae is a chronic inflammatory condition of the hair follicles of the occipital scalp, classified as a primary cicatricial alopecia, that presents as papules, pustules and keloid-like plaques. In a multicentre series of 142 patients it affected men almost exclusively, and three quarters reported previous trauma to the nape; in a separate series of 101 treated patients most responded to treatment but very few had full resolution.^[10,11]

Most people know it as razor bumps at the back of the head, and most barbers have seen it a thousand times. Two things about it matter here. It is a scarring condition — where it has been, follicles are gone. And it lives on the occipital scalp, which is the exact strip of skin a transplant takes its grafts from.

We searched PubMed on 19 September 2026 for anything published on harvesting follicular units from, around or through acne keloidalis nuchae, or on the condition reducing the usable donor area. We found nothing. The clinics that state it reduces the donor zone cite nothing for it.

What we will not tell you

• Your personal keloid risk as a percentage. No published figure exists for this operation in Afro-textured patients.
• That you will not scar. The two facts at the top of this page are the honest position.
• A treatment protocol for a keloid if one forms. That belongs to a dermatologist, and the literature’s own summary of the options is that most have had limited success.
• That bumps at the nape do not matter for the donor area. Nobody has shown that either way.

What to ask — here or anywhere

1. Did you ask me about raised scars, mine and my family’s? If a clinic reaches a graft count before it reaches that question, notice.
2. Will you look at my nape, and what will you do if there are bumps there?
3. Do you offer a test extraction, and how long do you watch it?
4. What punch size, and why? Larger punches are named as a risk for pale dots in darker skin; the largest Afro-specific series used larger punches anyway. Hear how they reconcile it.
5. Show me the source for any keloid figure you are given.

How your skin heals in the weeks after surgery is on the aftercare page; what we record about every donor site under our measurement protocol includes scarring at six months and beyond. If you want these questions answered about your own skin, send them to us.