Written by the AfroHairClinicTurkey editorial team, drawing on the clinical experience of our medical team · Last updated October 19, 2026 · How we write and check this
On this page 6 sections
Locs appear in every list of hairstyles that pull — ours included. What almost nobody does is answer the questions a person who actually wears them arrives with: does my loc history rule a transplant out, do they have to be cut, and when could I loc again. This page separates what has been measured from what has not, and says plainly which half we are standing on.
If you are still working out which kind of hair loss you have, the differential page compares the three patterns. If you already know it is tension loss at the front, the traction alopecia page covers the condition itself, and this page covers the part that is specific to locs.
What the evidence measured — and what it did not
The traction literature we hold is good on prevalence. In a population study of 874 African adults in Cape Town, was found in 31.7% of the women examined.[1] The same work located where risk concentrates: traction alopecia was most common among women whose usual style was extensions attached to chemically relaxed hair, affecting 48% of that group.[1] A separate survey found a strong association between CCCACentral centrifugal cicatricial alopecia A scarring alopecia that begins at the crown and spreads outward. The follicle is destroyed and replaced by scar tissue, so hair lost to it does not return. Its cause is not established: both genetic variants and certain high-tension styling practices have been associated with it. and sewn-in weaves, and between CCCA and cornrows or braids using artificial extensions, with those women more likely to report pulling and tenderness.[2]
Read those three sentences again and notice what is missing. Extensions, relaxer, weaves, cornrows, braids. Not locs.
We went looking for a study that measures locs as their own category and did not find one in our register. That absence is the honest headline of this page. Anyone who quotes you a risk figure for locs specifically is extrapolating from braids and weaves, and extrapolation is not measurement. We are not going to borrow those numbers and attach your name to them.
What does carry across is the mechanism rather than the number. Traction induces inflammation and follicle damage, and the risk rises with styles that hurt — pain from a hairstyle is a warning sign rather than something to tolerate.[3,4] That is a statement about sustained pull, and locs can carry sustained pull: weight as they lengthen, tension at the root from retwisting, and interface loads where they are tied back. Whether yours did is a question about your scalp, not about the category.
Does a loc history disqualify me?
Not by itself. The question that decides candidacy is not the name of the style you wore. It is whether tension has already scarred the margin, and that is assessable.
The most useful sign is one you can see. In the series that named the fringe sign, 35 of 41 women with traction alopecia had a retained strip of hairs along the frontal or temporal rim, and every woman whose traction involved the marginal hairline had one.[5,6] That retained fringe is why the edges have to be photographed with the style down — a loc line pulled back sits directly over the half-inch that carries the .
Under the microscope the picture is less forgiving. Of fourteen biopsies available for review from that series, fibrotic fibrous tracts were present in all of them, and a decrease in terminal hairs in all of them.[5] Where traction has been long enough, the follicles are gone and what remains is scar.
Two cautions pull in opposite directions, and both belong here. Traction alopecia can progress to permanent hair loss if the styling that causes it continues,[4] and a review states that there is currently no cure, and that in its later stages the disease may progress into an irreversible if traumatic hairstyling continues without appropriate intervention.[6] But a scarred margin is not proof that traction caused it: in a review of 15 patients with scarring alopecia of the scalp margin, six gave a history of relaxing or straightening, six denied hair care practices sufficient to cause traction alopecia, and in three the history was unknown.[7] Histopathology can distinguish traction alopecia from alopecia areata, frontal fibrosing alopecia and patchy CCCA, and dermoscopy can detect ongoing traction through hair casts.[6,7] If someone has already biopsied you, that report answers in a paragraph what photographs can only circle.
If the margin has scarred, how long do grafts last there?
This is the number that should set expectations, and it is not comfortable. A 2026 systematic review of in lichen planopilaris and frontal fibrosing alopecia, covering 13 studies and 113 patients, reported graft survival of 80 to 100 percent at six to twelve months, 71 to 100 percent up to twenty-four months, and below 41 percent after the second year; the authors identified no prospective studies or clinical trials.[8,9]
Those are scarring conditions, not traction, so the transfer is imperfect — but it is the closest measured answer anyone has for grafts placed into a scarred hairline, and the shape of it is consistent: good early, declining after year two. A clinic that shows you a twelve-month photograph of a rebuilt margin is showing you the part of the curve that looks best.
How long should the pulling have stopped before surgery?
Nobody agrees. In that same review, transplantation was performed on patients with no clinically active disease in ten of the studies, covering 101 patients, and the length of time the disease had been quiet before surgery varied widely between studies, ranging from none at all to sixty months.[8]
None at all, to five years. So when a clinic tells you to wait a specific number of months after taking your locs down, understand what you are being given: that is their policy, and it may be a reasonable one, but it is not a finding. Ask them which it is.
The questions we cannot answer for you yet
Everything above rests on published evidence. The next four questions are about surgical practice rather than literature, and the honest position is that they are answered by the clinic doing the operation, not by a study. We would rather list them than invent answers.
- Do the locs have to be cut, and how much? If the answer is yes, ask whether that is for donor access, for recipient-site visibility, or for post-operative care — the three have different implications for how much comes off.
- If they are not cut, how is the donor area reached and how are grafts placed between them? A clinic that has done this before can describe it specifically.
- When can I loc again, and what is that based on? Grafts anchoring is not the same question as tension tolerance, which is why the aftercare page separates the two.
- Will you photograph my margin, with the style down, before anything is planned? The fringe sign above is the reason this is not a formality.
What to send, and why each item changes the answer, is set out on the page about what a clinic has to see first. What the front edge itself involves — placement, donor cost, and why a sharp line-up is not the same thing as an artificial hairline — is on the hairline decision page. And what happens to edges that are rebuilt, in the months after, is on the edges page. Beyond the three questions above, the questions other people sent before they had decided anything — including the ones we went looking for evidence on and could not answer are collected in one place.
Where this leaves you
Wearing locs does not put a transplant out of reach, and no study in our register says it does. What decides it is whether the margin still has follicles, how long the pulling has been off, and whether the person operating can tell you which of their answers come from evidence and which from their own practice. If you take one line from this page, make it the one we could not fill in: the risk figures you will be quoted for locs were measured on something else.
Clinical references
- Khumalo NP, Jessop S, Gumedze F, Ehrlich R. Hairdressing and the prevalence of scalp disease in African adults. The British journal of dermatology. 2007;157(5):981-8. view source →
- Gathers RC, Jankowski M, Eide M, Lim HW. Hair grooming practices and central centrifugal cicatricial alopecia. Journal of the American Academy of Dermatology. 2009;60(4):574-8. view source →
- Mirmirani P, Khumalo NP. Traction alopecia: how to translate study data for public education—closing the KAP gap? Dermatol Clin. 2014;32(2):153-61. view source →
- Haskin A, Aguh C. All hairstyles are not created equal: What the dermatologist needs to know about black hairstyling practices and the risk of traction alopecia (TA). Journal of the American Academy of Dermatology. 2016;75(3):606-611. view source →
- Samrao A, Price VH, Zedek D, Mirmirani P. The "Fringe Sign" - A useful clinical finding in traction alopecia of the marginal hair line. Dermatol Online J. 2011;17(11):1. view source →
- Billero V, Miteva M. Traction alopecia: the root of the problem. Clin Cosmet Investig Dermatol. 2018;11:149-159. view source →
- Goldberg LJ. Cicatricial marginal alopecia: is it all traction? Br J Dermatol. 2009;160(1):62-68. view source →
- Palacios-Diaz RD, Lasheras-Perez MA. Systematic review of efficacy of hair transplantation in patients with classic lichen planopilaris and frontal fibrosing alopecia: revisiting the current evidence. An Bras Dermatol. 2026;101(5):501426. view source →
- Daruwalla SB, Dhurat R, Ghate S, Bhatt K. Long-Term Utility of Follicular Unit Excision in Lichen Planopilaris-Correlation of Graft Survival With Histopathological and Ultrasound Biomicroscopic Parameters. Dermatol Surg. 2021;47(9):1243-1248. view source →
References are checked on the dates recorded in our evidence library. If a source has been superseded, tell us and we will update it.