Scarring Alopecia: Causes & Treatment Options

Most hair loss leaves the follicle alive and capable of regrowing. Scarring alopecia is the serious exception. Here the hair follicle is not switched off but destroyed, replaced by scar tissue, and once that has happened the loss in that spot is permanent. That sounds bleak, and we will not pretend otherwise, but it is only half the story. Catching the condition early can protect the hair you still have, and for the right patient there are real options, including, in specific circumstances, a hair transplant.

This guide explains what scarring alopecia is, what causes its various forms, and what can realistically be done about it, both to halt it and to restore hair. We approach it the way we would in the clinic, because this is a condition where the wrong advice, or false hope, does real harm.

What Scarring Alopecia Is

Scarring alopecia, known medically as cicatricial alopecia, is a group of conditions in which inflammation destroys the hair follicle and the stem cells that allow it to regenerate, leaving scar tissue in its place. Because those stem cells sit in a part of the follicle called the bulge, and once they are gone the follicle cannot rebuild itself, the hair loss is permanent. This is the fundamental difference from common pattern baldness or the patchy loss of alopecia areata, where the follicle survives and regrowth remains possible.

It is relatively uncommon, accounting for roughly 7 percent of people who see a specialist about hair loss, but it is disproportionately distressing, both because the loss is permanent and because it can be accompanied by symptoms the more common types do not cause. Doctors divide it into two broad groups. Primary scarring alopecia, where the follicle itself is the direct target of the inflammation, and secondary scarring alopecia, where the follicles are destroyed as collateral damage from something else, such as a burn, a serious injury, radiation, or another skin disease.

The Main Types

The primary scarring alopecias are classified by the kind of immune cell driving the damage, but for a patient the more useful distinction is simply which condition it is, since each behaves a little differently.

Lichen planopilaris (LPP) is the most common primary scarring alopecia. An inflammatory condition related to lichen planus, it typically causes patchy loss with redness and scaling around the follicles, often at the sides and back of the scalp, and it most frequently affects women over fifty.

Frontal fibrosing alopecia (FFA) is a variant of LPP that produces a distinctive, slowly receding band along the frontal hairline, and it often thins the eyebrows too. It is seen most commonly in post-menopausal women, and its incidence has been rising.

Central centrifugal cicatricial alopecia (CCCA) begins at the crown and spreads outward in a roughly circular pattern. It is the most common form of scarring hair loss in Black women, though it can affect anyone.

Folliculitis decalvans is a different, neutrophil-driven type, producing painful, pustular, inflamed patches that scar as they heal.

Discoid lupus erythematosus of the scalp, a form of cutaneous lupus, can also scar the follicles and leave pale, smooth patches.

There are others, but these account for the majority of cases a clinic sees, and the point is not to self-diagnose from a list. It is to understand that scarring alopecia is not one disease but several, which is exactly why an accurate diagnosis comes before any talk of treatment. 

For a wider view of how it sits alongside the other kinds of hair loss, our overview of the broader family of hair loss conditions puts it in context.

Why Does Scarring Alopecia Happen?

The honest answer is that for the primary scarring alopecias, the precise cause is often not fully understood. What is clear is the mechanism, an inflammatory or autoimmune process turns on the follicle, attacking the stem cells and the sebaceous glands that keep it healthy, and the sustained inflammation replaces that machinery with fibrous scar. Genetics, autoimmune tendencies, and in some cases hormonal and environmental factors are thought to contribute, and certain types show clear patterns, affecting particular ages or groups more than others.

The secondary scarring alopecias are more straightforward to explain, since the cause is external. A burn, a deep wound, surgery, radiotherapy, or an infection damages the scalp directly, and the follicles are lost in the healing. The distinction matters because a stable scar from an old injury behaves very differently from an active, ongoing inflammatory disease, and that difference is central to what can be done next.

What Can Be Done: Halting The Disease

Because a destroyed follicle cannot be brought back, the first and most important goal of treatment is not regrowth but control, stopping the inflammation before it spreads and takes more hair. The sooner an active scarring alopecia is caught and calmed, the more of your own hair is saved, which is why early diagnosis carries so much weight.

Treatment here is medical and belongs with a dermatologist. It is tailored to the specific type, but the mainstays for the inflammatory forms are anti-inflammatory and immune-modifying medications, such as topical and injected corticosteroids as a first-line approach, sometimes alongside oral medications like hydroxychloroquine or, for certain types, antibiotics used for their anti-inflammatory effect. The neutrophilic types, such as folliculitis decalvans, are often managed with antimicrobial treatment. Many of these are prescribed off-label and need adjusting over time, so ongoing specialist supervision is the norm rather than a one-off prescription.

None of this regrows lost hair. What it does is preserve what remains and bring the condition to a quiet, inactive state, and reaching that inactive state is what opens the door to the next question.

Can You Have A Hair Transplant For Scarring Alopecia?

This is the question we are asked most by patients with these conditions, and it is where we have to be both hopeful and scrupulously honest, because the answer is a qualified yes, with important conditions attached.

A hair transplant can restore hair to a scarred area, but only once the disease is confirmed burnt out, meaning it has been completely inactive for a sustained period, typically one to two years without ongoing treatment or further loss. Operating on an active scarring alopecia is a serious mistake, because the same inflammatory process that destroyed the original follicles will attack the transplanted ones, and the disease can even be provoked by the surgery itself. Confirming that quiet state properly, through careful monitoring and sometimes a scalp biopsy, is the single most important safeguard in the whole process.

Even in a suitable, stable patient, there are realities to set out plainly. Scar tissue has a poorer blood supply than healthy scalp, and grafts depend on that blood supply to survive, so graft survival is lower than in ordinary pattern-baldness surgery, often around half rather than the ninety percent or more we would expect in androgenetic cases. It also varies by the underlying condition. For this reason, a careful surgeon will usually begin with a small test session of grafts into the scarred area and wait to see how well they take before committing to a full procedure. It is a cautious, staged approach, and it is the responsible one.

Where a transplant is appropriate, FUE is the preferred technique precisely because it is minimally invasive, adds no further linear scarring, and lets the surgeon place each graft individually into compromised tissue at a carefully judged, lower density. In more extensive cases, beard or body hair can help supplement a limited donor supply. Because the small risk of the disease reactivating never fully disappears, patients are often kept on a baseline medical treatment and monitored afterwards, which is exactly the kind of long-term, careful care this condition demands.

How We Approach It

Our position, as a clinic, is that scarring alopecia is a condition to treat with candour rather than sales. For many people who come to us, the most useful thing we can do is confirm the diagnosis, explain plainly where they are, and make sure the active disease is being properly managed by a dermatologist first, because that protects their remaining hair far more than any surgery could. For those whose disease is truly stable, we can then talk it through with you and have a realistic conversation about restoration, including its limits.

What we will not do is transplant into an active or unstable scalp, or promise a result the tissue cannot support. That restraint is not caution for its own sake. It is the difference between helping and doing harm, and on a condition like this it is the only responsible way to practise.

If you are dealing with hair loss that comes with itching, burning, tenderness, redness, or scaling, or with smooth patches where the follicle openings seem to have disappeared, the best thing you can do is book a consultation without delay. Those are the signs that separate scarring alopecia from ordinary hair loss, and with this condition, time truly matters. A proper assessment is the right first step every time, letting us confirm what you are dealing with, make sure any active disease is being managed, and talk you through what can realistically be done. It is always better to have it looked at early than to wait and lose hair that could have been saved.

Frequently Asked Questions

What is scarring alopecia? 

It is a group of conditions, also called cicatricial alopecia, in which inflammation permanently destroys the hair follicle and replaces it with scar tissue. Unlike common hair loss, the follicle cannot regrow, so the loss is permanent and the priority is halting the disease early.

Is scarring alopecia permanent? 

Yes. Once a follicle is destroyed and replaced by scar tissue, that hair cannot regrow, because the stem cells that would rebuild it are gone. This is why early treatment to stop the inflammation spreading is so important for preserving the hair that remains.

Can scarring alopecia be treated? 

The disease itself can be controlled, though not reversed. Treatment focuses on calming the inflammation with anti-inflammatory and immune-modifying medications to stop it progressing. This preserves existing hair but does not regrow what has already been lost.

Can you have a hair transplant with scarring alopecia? 

Sometimes, but only when the disease has been completely inactive for a sustained period, usually one to two years, confirmed by careful monitoring and often a biopsy. Transplanting into active disease fails and can worsen it, so stability is essential, and graft survival is lower than in ordinary transplants.

Why is graft survival lower in scarring alopecia transplants? 

Scar tissue has a poorer blood supply than healthy scalp, and grafts rely on that blood supply to survive. This is why survival rates are often around half those of standard pattern-baldness surgery, and why a cautious surgeon tests a small area first and uses a lower graft density.

What are the early signs of scarring alopecia? 

Warning signs include hair loss accompanied by redness, scaling, itching, burning, tenderness, or pustules, and smooth patches where the tiny follicle openings appear to have vanished. Because it can resemble ordinary hair loss at first, any of these symptoms warrants a proper examination.

Which types of scarring alopecia are most common? 

Lichen planopilaris is the most common, along with its variant frontal fibrosing alopecia, which affects the frontal hairline. Central centrifugal cicatricial alopecia, most common in Black women, and folliculitis decalvans are other important forms. Each behaves differently and needs an accurate diagnosis.