A cyst is a fluid filled lump that sits just underneath the skin. They are usually round in shape and often are yellow or white with a small dark plug through which pus can be squeezed out. Cysts are very common and are usually nothing to worry about. They may disappear on their own without any treatment, but it is worth getting your cyst checked by a doctor if you are worried or if the cyst becomes sore or infected.

One of the main types of cyst which appears on the skin is called an epidermoid cyst and these are usually found on the face, neck, chest, shoulders and around the genitals. These are usually associated with acne and are most common in young and middle aged adults.

Pilar cysts are also relatively common and are formed around hair follicles so are often seen on the scalp. These run in families and are mostly seen in middle-aged women.

While cysts are usually nothing to worry about, growths on the skin can be an indication of a more serious health problem, so it is important to get any lumps and bumps checked by a consultant dermatologist to rule out anything that may require further investigation.