Download Nevus Sebaceous

Nevus Sebaceous
Nevus sebaceous is a hairless area that is present at birth. It most often occurs on the scalp and
less often on the face, neck or trunk. The surface may be smooth or pebbly. The color is often
yellow to yellow-orange.
Nevus sebaceous is a small area with too many sebaceous (or oil-producing) glands. This type
of birthmark is not inherited. It may occur in both males and females of all races. Nevus
sebaceous grows at the same rate as the child. Sometimes, it is seen at birth. The hormones
from the mother may cause the sebaceous glands to be active. As the baby ages and hormone
levels decrease, it isn’t seen as much. Also, as the child enters puberty, the lesion may become
thick, raised, and nodular.
Very rarely a cancerous growth may develop in it later in life.
UW Dermatology Department
1 S. Park St 7th Floor
Madison, WI 53715
Clinic: 608 287-2450
American Family Children’s Hospital
Pediatric Dermatology Specialty Clinic
1675 Highland Ave.
Madison, WI 53792
Clinic: 608 263-6420
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