What is endometriosis?
Endometriosis is a condition whereby endometrial cells, which normally line the surface of the uterus or womb (endometrium), are found outside the uterus. This can be on the lining of the abdomen (peritoneum), behind or on the uterus or behind or on the ovaries. Rarely the cells migrate to other parts of the body including the bowel. The endometrium responds to the female hormones, oestrogen and progesterone, preparing for a possible pregnancy each month by thickening and increasing the blood supply. If an egg is not fertilised, the endometrium is shed during normal menstrual bleeding. Groups of rogue endometrial cells can cause considerable pain and heavy menstrual bleeding.
What causes endometriosis?
The origin of the misplaced endometrial cells is not really known but there may be a genetic predisposition for endometriosis, as endometriosis does seem to run in families. Recent studies suggest that immunological and environmental factors may also be involved in this condition.
What are the symptoms?
Sometimes there are no symptoms and endometriosis is discovered accidentally during investigations for other problems like infertility. However, for many sufferers symptoms include:
Complications
When patches of endometriosis cells bleed, the blood gets trapped internally and can cause inflammation in surrounding tissues, which in turn can cause tissues and organs to stick together, called adhesions. This is a major cause of pain and can also cause scarring or blocked fallopian tubes; a major cause of infertility. Other serious complications include cysts, particularly on the ovaries.
Prevention and treatment
Because endometriosis has such debilitating effects on so many women, there are active research programmes and clinical trials going on right now to try to make it easier to identify and improve treatment.
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