Endometriosis is thought to affect approximately between 1 and 15% of women. Of the women affected, many go undiagnosed as there are no symptoms present. Of the women unfortunate enough to suffer badly from the disease, most experience fertility related problems. This may be secondary infertility, in that they may have already had a child and experienced difficulty at a second conception, at which time the condition is diagnosed.
The endometrium is otherwise known as the lining of the womb and the disease manifests itself as the same cells are established outside the womb e.g. on the ligament supporting the uterus. in the ovaries, tubes, pelvis, bowels, bladder, etc. In patients with endometriosis, these cells, like the endometrium, respond to the monthly hormonal changes. When a woman with endometriosis menstruates, the endometrium is shed in the form of a period, the endometriosis breaks down in the same way but because these cells are trapped inside, and cannot escape, they form swellings filled with dark blood (known as chocolate cysts) and adhesions which may damage the tubes.
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