Anyone can develop a sebaceous cyst, but there are some factors that may make you more susceptible: A small, round bump under the skin, usually around the face, neck, or trunk A tiny blackhead ...

Medicare may cover the removal of sebaceous cysts, also known as epidermal, keratin, or epithelial cysts, if a healthcare professional deems the procedure medically necessary. Sebaceous cysts are ...

A hump on the back of the neck, or top of the spine ... Although people often describe cysts as sebaceous cysts, they do not involve the sebaceous glands. Keratin material fills these lumps ...