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.
Common autoimmune diseases such as thyroiditis, rheumatoid arthritis and diabetes affect more than 1 in 100 people. In contrast, a rare autoimmune disease such as Goodpastureâs disease (a form of vasculitis) affects around 1 in a million people.he causes of autoimmune diseases are not yet known. However, in many cases it appears that there is some inherited tendency to develop autoimmune diseases. In people with this inherited tendency, other factors such as infections and some drugs may play a role in triggering autoimmune disease.