(seb-o-REE-ik ker-uh-TOE-sis)
Seborrheic keratosis is one of the most common noncancerous skin growths in older adults.
A seborrheic keratosis usually appears as a brown, black or light tan growth on the face, chest, shoulders or back. The growth has a waxy, scaly, slightly elevated appearance. Seborrheic keratoses don’t become cancerous and aren’t thought to be related to sun exposure, but they can look like skin cancer.
Multiple lesions may appear, although at the beginning there may be just one. Growths can be found on many areas of the body, including the:
Growths are not found on the soles of the feet or the palms.
Growths often start out as small, rough areas. Over time, they tend to develop a thick, wart-like surface. They’re often described as having a “stuck-on” appearance.
They may also look waxy and have slightly raised surfaces.
Growths are usually round or oval-shaped.
Growths are usually brown, but they can also be yellow, white, or black.
