Nevus of Ota is a type of dermal melanocytosis (excessive melanocytes in the tissues) that causes the hyperpigmentation of an eye and the surrounding area. It often takes the form of bluish or ...

A blue nevus is a benign type of mole. It may appear as a blue lump on the skin. A blue nevus may be present at birth or develop as a person ages. Healthcare professionals refer to more than one blue ...

A congenital nevus is a mole that you’re born with. These moles can be large or small, have hair growing out of them, or change over time. Congenital nevus (or nevi) is the medical term for a mole ...

Sebaceous hyperplasia is a benign condition that causes bumps to form on the skin. Treatments can include removal, medications, and home remedies. Skin contains sebaceous glands, which produce oil, or ...