Alopecia Barbae: Beard Alopecia Areata, Causes and Regrowth
Last reviewed on 4 August 2026. We review our treatment guides every six months to keep them accurate.
Alopecia barbae is the name given to alopecia areata when it affects the beard. It is an autoimmune condition in which the immune system attacks the beard hair follicles, causing sudden, well defined, smooth round or oval bald patches across the beard, cheeks, jawline or neck. Because it is a form of alopecia areata and not a scarring condition, the follicles are not destroyed, so regrowth is possible.
According to the British Association of Dermatologists, alopecia areata can affect the scalp, beard, eyebrows, eyelashes and body hair, and in around 4 out of 5 people with small patches the hair grows back within a year even without treatment. This guide explains what alopecia barbae is, what causes it, how to recognise it, whether your beard will grow back and how a dermatologist may treat it.
Once alopecia barbae has been ruled out or treated, stable patchiness becomes a candidate for beard restoration, and our guide compares the options honestly.
What causes alopecia barbae?
Alopecia barbae is an autoimmune condition. Normally the immune system protects the body from infection, but in alopecia areata it mistakenly attacks the hair follicles and switches off hair growth in the affected area. DermNet describes this as immune cells targeting active follicles, which causes the hair to shed and leaves a smooth bald patch. The follicles themselves survive, which is why the hair can return.
There is usually a genetic tendency behind it. The British Association of Dermatologists notes that around 2 in 10 people with alopecia areata have a family history of the condition, and researchers have identified at least 16 genetic risk areas linked to it. It is also more common in people who have other autoimmune conditions, such as thyroid disease, vitiligo or type 1 diabetes.
Stress is often described as a trigger rather than a direct cause. A stressful event can sometimes come before a flare, but many people develop alopecia barbae with no identifiable trigger at all, and the link is not fully understood. You can read more in our guide to stress and hair loss.
Alopecia barbae or a naturally patchy beard?
Alopecia barbae is not the same as a beard that has simply never filled in. A genetically thin or patchy beard is not caused by autoimmune activity: the follicles in the sparse areas were never dense to begin with, and there is no sudden loss. Alopecia barbae, by contrast, shows up as clearly defined smooth patches where a beard was previously growing. If you have always had gaps in your beard rather than new bald spots, our guide on how to fix a patchy beard is likely to be more relevant.
Recognising the symptoms
The main sign of alopecia barbae is one or more smooth, well defined round or oval bald patches that appear quickly rather than gradually. The skin usually looks normal, with no scaling or scarring. Some people notice a little tingling, itching or a burning feeling in the area shortly before the hair falls out.
At the edge of a patch, a dermatologist may see short, tapered hairs known as exclamation mark hairs, which are broken hairs that are thinner near the skin. Patches can join together to form larger areas, and some people also have patches on the scalp, eyebrows or elsewhere on the body.
Alopecia barbae can look similar to other problems, such as a fungal beard infection or irritation from shaving, so it is worth getting a proper diagnosis. See a GP or a dermatologist if you notice bald patches appearing in your beard, especially if they are spreading or you also have patches elsewhere.
Will my beard grow back?
In most limited cases, yes. The British Association of Dermatologists reports that for about 4 out of 5 people with small patches of alopecia areata, complete regrowth happens within a year even without treatment, because the follicles are not permanently damaged. The NHS similarly notes that hair loss caused by a medical condition usually grows back once you have recovered.
Regrowth can be unpredictable, though. New hairs often come through fine and white or pale at first, before thickening and regaining their normal colour over time. The condition can also come and go: patches may recur, spread or clear and return in cycles. Where the hair loss is more extensive, the chance of full regrowth is lower.
How is alopecia barbae treated?
Because limited alopecia barbae often clears on its own, one reasonable option is simply to wait and keep an eye on it while the beard recovers. Where treatment is wanted, it is the same as for alopecia areata elsewhere and should be guided by a dermatologist. Options a specialist may consider include:
- Corticosteroids applied to the skin or injected into the patch. Small injections of steroid into a patch of the beard are considered one of the more effective options for limited loss.
- Topical immunotherapy, such as diphencyprone (DPCP), used by specialists for more extensive or stubborn cases. It deliberately provokes a mild, controlled allergic reaction that can help hair regrow.
- Topical minoxidil, sometimes used alongside other treatments, although the evidence for it on its own is limited.
Newer tablets called JAK inhibitors, such as ritlecitinib and baricitinib, can be used for severe alopecia areata of the scalp. Ritlecitinib is available on the NHS for people aged 12 and over with severe alopecia areata. These medicines are licensed for severe scalp disease rather than specifically for the beard, and they carry a risk of side effects such as infection, so they are only prescribed and monitored by a specialist. Your doctor can advise whether any treatment is right for you.
Is a beard transplant a treatment for alopecia barbae?
No. A beard transplant is not a treatment for active autoimmune hair loss. Because the immune system is attacking the follicles, it can attack transplanted hairs in the same way, and the follicles in alopecia barbae are not permanently destroyed, so the hair often returns on its own. Transplant surgery is generally only considered for permanent loss, such as a genetically patchy beard, once the area is stable, and not for active alopecia barbae.
Frequently asked questions
Is alopecia barbae the same as alopecia areata?
Yes. Alopecia barbae is the term for alopecia areata when it affects the beard. It is the same autoimmune condition, just in a specific location. You can read more in our alopecia areata guide.
Does alopecia barbae grow back?
Usually. For small patches, around 4 out of 5 people see complete regrowth within a year, even without treatment, because the follicles survive. Regrowth can be fine and white at first, and the patches can sometimes recur.
Is alopecia barbae caused by stress?
Stress is best thought of as a possible trigger rather than a direct cause. A stressful period can sometimes precede a flare, but many people develop it with no clear trigger, and the underlying cause is an autoimmune process with a genetic tendency.
Can alopecia barbae spread?
It can. Patches may enlarge or join up, new patches can appear, and some people also have loss on the scalp or eyebrows. If your patches are spreading, see a GP or dermatologist.
Should I see a doctor about bald patches in my beard?
Yes. A GP or dermatologist can confirm whether it is alopecia barbae rather than another cause, such as a fungal infection, and talk you through whether any treatment is worthwhile in your case.
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