In dermatology, cysts are noncancerous growths that can appear beneath the skin. They may appear as tiny, raised bumps or lumps on the skin and are typically packed with fluid, pus, or other substances.
Epidermoid cysts, sebaceous cysts, and pilar cysts are a few of the various forms of cysts that can develop on the skin. The most prevalent type of cysts are epidermoid cysts, which are typically caused by an overabundance of skin cells. Pilar cysts are brought on by an overgrowth of cells in the hair follicle, whereas sebaceous cysts are caused by the obstruction of an oil gland or hair follicle.
Virtually any place on the body can develop cysts; but the face, neck, chest, and back are the most prevalent locations. They are often painless but can develop an infection or inflammation that results in redness, swelling, and pain if the cyst ruptures.
Cysts are normally not harmful, although they can be unattractive or uncomfortable, and they may need to be treated or removed. Depending on the size and location of the cyst, treatment options include surgical excision or drainage, intralesional steroid injections, or oral antibiotics. A board-certified dermatologist should be consulted to decide the best course of action in each unique case.