Endometriosis

Endometriosis:the hidden suffering of millions of women revealed:
"Endometriosis has existed in the twilight for centuries because of society’s reluctance to discuss what was euphemistically known for so long as “women’s troubles”. 

It occurs when tissue similar to the lining of the womb is found elsewhere – most commonly in the abdomen, ovaries, in the recto-vaginal septum, bladder and bowel. That tissue behaves like the lining of the womb, bleeding every month, and can cause cause severe and chronic pain . Women tell of such acute pain that they pass out."?

Briefly What is endometriosis? A visual guide