An ovarian cyst is a fluid-filled sac that develops on a woman’s ovary.
Our Health A-Z contains more information on Ovarian cyst.
Pelvic inflammatory disease (PID) is a bacterial infection of the female upper genital tract, including the womb, fallopian tubes and ovaries.
Our Health A-Z contains more information on Pelvic Inflammatory Disease.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.