Pelvic inflammatory disease (PID) is an infection and inflammation of the uterus, ovaries, and other female reproductive organs. It causes scarring in these organs. This can lead to infertility, ectopic pregnancy, pelvic pain, abscesses, and other serious problems. PID is the most common preventable cause of infertility in the United States.
Researchers believe that Meniereâs disease is the result of constrictions in blood vessels similar to those that cause migraine headaches. Others think Meniereâs disease could be a consequence of viral infections, allergies, or autoimmune reactions.
Menieres Disease. Meniere's disease is a disorder of the inner ear that causes vertigo, hearing problems, and a ringing sound. It's thought to be caused by changes in the fluid of the inner ear, and usually only affects one ear.