Keratin is a protein that occurs naturally in skin cells. Cysts develop when the protein is trapped below the skin because of disruption to the skin or to a hair follicle. These cysts often develop in response to skin trauma, HPV infection, acne, or excessive exposure to the sun.
They may contain fluid or semisolid material. Although cysts can appear anywhere in the body, most frequently they live in the skin, ovaries, breasts or kidneys. Most cysts are not cancerous. Epidermoid cysts form when surface skin cells move deeper into the skin and multiply.
Epidermal inclusion cyst (EIC), also known as sebaceous cyst and epidermoid cyst, is the most common cyst of the skin. It ranges in size from a few millimeters to a few centimeters and originates from the follicular infundibulum. Its contents are a cheesy, malodorous mixture of degraded lipid and keratin.
Understand cystic acne. Acne is a general term that describes a variety of different types of pimples, blackheads, pustules, whiteheads and cysts. Cystic acne are nodules that are red, raised, often 2–4 mm in size and nodular and are the most severe form of acne. The infection in a cystic acne is deeper than that in other pustules or whiteheads. Cystic acne is painful.
Identify a ganglion cyst. These are the most common types of lumps found on the hand and wrist. They are not cancerous and often harmless. Filled with fluid, they can quickly appear, disappear or change in size. They do not require treatment unless they interfere with function or are unacceptable in appearance.
Determine if pain is from a pilonidal cyst. In this condition there is a cyst, abscess or dimple that forms in the crease between the buttocks that runs from the lower end of the spine to the anus. It can be caused from wearing tight clothing, excess body hair, sitting for long periods of time or obesity. Symptoms can include pus from the area, tenderness over the cyst, or the skin may be warm, tender or swollen near the tailbone. Or there may not be any symptoms beside a pit or dimple at the base of the spine.
Distinguish a Bartholin gland cyst. These glands are located on either side of the vaginal opening to lubricate the vagina. When the gland becomes obstructed, a relatively painless swelling forms called a Bartholin’s cyst. If the cyst is not infected you may not notice it. An infection can occur in a matter of days causing tenderness, fever, discomfort walking, pain with intercourse, and a tender, painful lump near the vaginal opening.
See a doctor for swelling in the testicles. All testicular swelling must be diagnosed by a physician to determine the differences between a cyst, cancerous growth, hydrocele or infection in the testicles. A testicular cysts, also called a spermatocele or epididymal cyst, is typically a painless, fluid-filled, noncancerous sac in the scrotum above the testicles. T
Consider getting a second opinion if you are not satisfied with your physician’s diagnosis and treatment. Although most epidermoid and pilar cysts do not require treatment from a physician, if you do seek medical advice and are not satisfied with the results seek a second opinion. Most sebaceous and epidermoid cysts are straightforward, but there are other conditions that may mimic these cysts.