What should you know about bald circle spots on head?

A smooth, sharply outlined patch without scale may fit alopecia areata, an immune-related hair-loss condition. A circular patch with broken hairs, crusting, scale, tenderness, or swollen glands can suggest a scalp infection. Tight hairstyles, extensions, chemical processing, or repeated pulling may cause breakage or traction-related loss rather than loss from the root.

The visible patch alone cannot identify the cause. A clinician may inspect the scalp and hairs, check the nails or other skin, and take a scraping or hair sample when infection is a concern. Hair loss can occur alongside unrelated skin problems; pimples around follicles may point toward folliculitis rather than the cause of a bald patch.

Avoid scratching, picking, tight styles, and harsh chemical treatments over the area. Do not share combs, brushes, hats, or pillowcases until infection has been excluded, particularly if there is scale or broken hair. Photograph the patch in consistent light and note when it appeared, whether it is enlarging, and any recent illness, stress, new medicine, or hair treatment. Arrange a medical review rather than applying steroid or antifungal products without guidance.

Book an appointment soon if the patch is expanding, new patches appear, or the scalp is scaly, painful, itchy, crusted, or oozing. Seek prompt care for fever, marked swelling, pus, or rapidly spreading redness. Earlier assessment matters when scarring, infection, or permanent follicle injury is possible; children and people with close household contacts who have similar symptoms should be assessed promptly.

Ask what features distinguish alopecia areata, fungal infection, traction, and inflammatory scalp disease; whether testing is needed; and how to prevent spread if infection is suspected. Ask what hair practices are safe while the patch is active and how progress will be monitored.