Steatocystoma multiplex is a condition where multiple slow-growing cysts appear, usually during puberty, on any part of the body. They occur most commonly on the chest, sternal area, armpits, and neck. These can get quite large in size, but are often not very raised and are covered by normal looking skin. The contents of these cysts are more liquid and odorless, often clear or slightly yellow in color. These types of cysts, benign and rare, are compared to epidermoid cysts, and actually could be called truly "sebaceous cysts" because they begin in the sebaceous glands. Treatment is not medically necessary, but many people seek removal because they don't like the appearance.