What's behind it

Spontaneous healing for circular hair loss

There are many different causes of hair loss.(Bild: Gpoint Studio/stock.adobe.com)

A dermatologist explains what can cause circular hair loss, alopecia areata, and why some sufferers' hair suddenly starts to grow again - just as unexpectedly as it disappeared. The expert also explains what options are available to stop hair loss.

Suddenly, the bare scalp shows through in some places. Bald patches appear and become more and more visible. A condition that causes those affected to panic, accompanied by feelings of helplessness, insecurity and dwindling self-esteem. However, the problem usually started earlier.