What Causes Bumps on Your Skin? There are a number of conditions that cause lumps and bumps to appear on the surface or just below the skin. Some of the most common ones are: Cysts are noncancerous, ...

A dermoid cyst is a saclike growth that is present at birth. It contains structures such as hair, fluid, teeth, or skin glands that can be found on or in the skin. Dermoid cysts grow slowly and are ...

Ovarian cysts are sacs or pockets of fluid that form on the ovaries. There are two types of cysts: simple and complex. These are fluid-filled cysts that have no solid features. They are often either a ...

Perineural cysts form around nerve roots, particularly in the lower back. They typically don’t cause symptoms, but some people may experience back or leg pain if the cyst grows and presses on nearby ...

Colino is a contributor for TIME. Colino is a contributor for TIME. Ovarian cysts, which are small fluid-filled sacs that develop in or on the ovaries, are very common and are usually harmless. In ...

Cysts are lumps that can affect the earlobe when skin cells form in the innermost layer of the skin instead of shedding. These are epidermoid cysts. In rare cases, they can become cancerous. Earlobe ...