Is a closed, fluid-filled sac that grows beside or near the ovary and fallopian tube, but is never attached to them. It is usually located on the broad connection (ligament) between the uterus and the ovary, and is often found on only one side (unilateral) of the uterus.
Symptoms:
Pelvic pain — a dull ache that may radiate to your lower back and thighs
Pelvic pain shortly before your period begins or just before it ends
Pelvic pain during intercourse (dyspareunia)
Pain during bowel movements or pressure on your bowels
Nausea, vomiting or breast tenderness like that experienced during pregnancy
Fullness or heaviness in your abdomen
Pressure on your bladder that causes you to urinate more frequently or have difficulty emptying your bladder completely