What should you know about huge bald spot on head?

A smooth, sharply defined patch can occur with alopecia areata, an immune-related condition that may affect one or several areas. Scaling, broken hairs, tenderness, swelling or crusting can suggest scalp ringworm or another inflammatory problem. Tight hairstyles, extensions and repeated pulling can damage follicles over time. A clinician will inspect the skin, hair shafts and other body areas, and may use a magnifying examination or tests when the diagnosis is uncertain. The appearance alone cannot confirm the cause.

Arrange a medical assessment soon, especially if the patch appeared quickly or is enlarging. Until then, avoid tight styles, chemical processing, scratching and unprescribed scalp products. Do not share combs, hats, pillows or towels if there is scaling or suspected infection. Take a clear photograph to track change and bring information about recent illness, medicines, family history and hair practices. Treatment may involve prescription anti-inflammatory medicine, antifungal treatment, or another plan matched to the diagnosis.

Seek prompt care for severe scalp pain, pus, fever, marked swelling, rapidly spreading loss, or a shiny scar-like area. Sudden loss of eyebrows or lashes, nail changes, or widespread hair shedding should also be mentioned during assessment because they help guide the examination.

Ask what the scalp findings suggest, whether infection testing is needed, whether follicles appear scarred, which treatment is appropriate, and how soon progress should be reviewed.