Seborrheic keratoses usually appear as brown, black or light tan growths on the face, chest, shoulders or back. They have a waxy, scaly, slightly elevated appearance. Some people develop just a single growth, w
Excoriations (scratch marks) Redness Bleeding on or around seborrheic keratoses5 Skin Cancer What Causes Skin Barnacles? The precise cause of seborrheic keratosis remains unknown. Experts believe genes play a role, as these growths tend to run in families.6Other factors that may increase your ch...