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A fungal infection of the scalp, most common in children, causing scaly, itchy patches with broken hairs and sometimes bald spots. It is contagious and nee
Key termsAlopecia areata
A fungal infection of the scalp, most common in children, causing scaly, itchy patches with broken hairs and sometimes bald spots. It is contagious and needs oral antifungal treatment, not just shampoo. Treated early it usually resolves without permanent loss.
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Not medical advice. General education only; it does not replace diagnosis or treatment by a licensed professional. Consult a board-certified dermatologist before starting, stopping or changing any treatment.
⚠️ When to see a doctor — don’t self-treat
- Sudden patchy or circular bald spots
- Redness, scaling, pus, pain or itch (possible scarring alopecia — treat urgently)
- Broken hairs or rapid loss
- Loss with body-wide signs (weight loss, fatigue, cycle changes, acne, extra hair)
- Loss right after a new medication
- Any hair loss in a child