Blocked sebaceous glands, swollen hair follicles, and excessive testosterone production will cause such cysts.

The parasites can stay in a host body for decades, causing cysts, and House has figured Michael has cysts in his liver.

Acne can affect the face, chest and back and, in severe cases, cause painful cysts.

He learns that an excess amount of the drug can cause painful ovarian cysts, thereby realizing that Tracy deliberately created her illness with Jed's help.

Constipation does not cause or treat ovarian cysts but may further increase your pelvic discomfort.

Another parasitic protozoan is Myxobolus, this one causing fatal internal cysts and highly resistant to treatment.

Severe acne can cause large cysts and nodules.

PKD also causes cysts in other parts of the body, such as the liver.

Meatpackers are often required to repeat the same motion as much as 8,000 times an hour, which can cause cysts, swollen tendons and nerve damage.