An ovarian cyst rupture can cause sudden pain, bleeding, and other symptoms. Learn the signs, treatments, and what to expect ...

Medically reviewed by Susan Bard, MD Key Takeaways A pilonidal cyst is a painful lump located at the base of the spine at the top of the buttocks.Symptoms can include a painful lump, discharge, and ...

Arachnoid cysts are benign, cerebrospinal fluid-filled sacs that typically arise from developmental anomalies in the arachnoid membrane. Although often discovered incidentally, these lesions can ...

Bile duct cysts are atypical enlargements that develop within your biliary system. They may disrupt the normal flow of bile from the gallbladder and liver to your small intestine. Bile duct growths ...

A pilonidal cyst is a sac filled with hair and skin debris that forms at the bottom of your tailbone. The recovery time after surgery depends on the procedure type and if you need stitches. In some ...

Brain parasite cysts contain multiple active forms, not dormant cells, explaining treatment resistance and reactivation patterns.

DEAR MAYO CLINIC: I am a 59-year-old man who had a Baker’s cyst 20 years ago. It returned three years ago. I had surgery, which was supposed to take care of things. I have had it drained twice, only ...

Pineal cysts can occur in the brain’s pineal gland. While most people with pineal cysts never experience symptoms, some may develop headaches, vision changes, or sleep disturbances. Pineal cysts are ...

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to ...