Don't delay your care at Mayo Clinic
Featured conditions Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Featured conditions
Subscribe to Housecall
Our general interest e-newsletter keeps you up to date on a wide variety of health topics.
Ringworm of the scalp appears as round patches where the hair has broken off at or just above the scalp. These bald-looking patches slowly grow larger, covering more areas of the scalp.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.