Not Found

Find information on medical topics, symptoms, drugs, procedures, news and more, written in everyday language.

Dermatofibromas ˌdər-mət-ō-fī-ˈbrō-mə

(Benign Fibrous Histiocytomas)

By Denise M. Aaron, MD, Assistant Professor of Surgery; Staff Physician, Dartmouth-Hitchcock Medical Center; Veterans Administration Medical Center, White River Junction

Dermatofibromas are small red-to-brown bumps that result from an accumulation of collagen, which is a protein made by the cells (fibroblasts) that populate the soft tissue under the skin.

Dermatofibromas are common among adults and usually appear as single firm bumps, often on the thighs or legs, and particularly in women. The bumps are usually less than half an inch in diameter. Some people develop many dermatofibromas.

These harmless bumps are caused by a certain gene.

Dermatofibromas are harmless and usually do not cause any symptoms, except for occasional pain or itching.

Usually, dermatofibromas are not treated unless they become bothersome or enlarge. A doctor can surgically remove them if needed.

Resources In This Article