Medically reviewed by Mary Choy, PharmD A pilonidal cyst, sometimes called pilonidal disease, is a fluid-filled sac that ...

Ovarian cysts are fluid-filled sacs that can form in or on your ovaries. Some cyst types can become large in size and may require surgery. Most ovarian cysts are benign (noncancerous). They ...

Ovarian cysts are fluid-filled sacs that develop on or inside the ovaries. While most cysts are harmless and resolve on their own, some may cause discomfort or lead to health complications.