Cysts

Epidermal inclusion cysts (EICs) and pilar cysts are two types of cysts that affect the skin.

Epidermal inclusion cysts (EICs), also known as sebaceous cysts, are small, painless lumps that occur under the skin, usually on the face, neck, or upper body. They are caused by the accumulation of sebum, a waxy substance produced by the sebaceous glands, and are typically harmless. EICs are more common in men than in women and are often found on the face, neck, chest, and back.

Symptoms of EICs may include a small, round, or oval lump on the skin that is smooth or slightly tender to the touch. EICs may be white, yellow, or skin-colored, and they may or may not be accompanied by other symptoms.

Treatment for EICs typically involves the removal of the cyst. This may be done through surgery or through a procedure called cyst excision, in which the cyst is removed through a small incision. In some cases, your dermatology provider may recommend draining the cyst instead of removing it.

Pilar cysts, also known as trichilemmal cysts, are small, painless lumps that occur under the skin, usually on the scalp. They are caused by the accumulation of keratin, a protein found in the hair, and are typically benign. Pilar cysts are more common in women than in men and are often found on the scalp.

Symptoms of pilar cysts may include a small, round, or oval lump on the skin that is smooth or slightly tender to the touch. Pilar cysts may be white, yellow, or skin-colored, and they may or may not be accompanied by other symptoms.


Treatment for pilar cysts typically involves the removal of the cyst. This may be done through surgery or through a procedure called cyst excision, in which the cyst is removed through a small incision. In some cases, a healthcare provider may recommend draining the cyst instead of removing it.

In addition to treatment, there are several steps you can take to help reduce your risk of developing EICs or pilar cysts:

  • Practice good hygiene to help prevent infections

  • Eat a healthy, balanced diet to support overall health

  • Avoid injuries or cuts to the skin to help prevent the development of cysts

  • Avoid squeezing or picking at pimples or other skin blemishes, as this can increase the risk of cyst development

By following these precautions and seeking treatment as needed, you can help to manage EICs and pilar cysts and reduce your risk of developing these types of conditions. If you are concerned about a cyst or have any other changes in your skin, it is important to see a healthcare provider for evaluation and treatment.