Infertility and pain are the two most common symptoms of endometriosis.  Endometriosis affects fertility in 30-40% of the women that have the condition.  Though endometriosis may make it more difficult to get pregnant, it is usually not a permanent condition, and in most cases can be treated through minor surgery and hormones. ["Facts about Endometriosis." Cleveland Clinic]

How Endometriosis Affects Fertility

Endometriosis is a condition in which the cells of lining of the uterus, called the endometrium, grow outside of the uterus and can deposit in other areas of the pelvis including the ovaries, pelvic area, and bowels.  There is little concrete research, but it has been noted that many women who suffer from endometriosis have more difficulty getting pregnant than those who do not.  The severity of the condition also seems to play a role in fertility.  Those with more severe endometriosis have more difficulty conceiving than those with mild or moderate conditions.

Why Endometriosis Affects Fertility

Researchers are exploring this often misunderstood and misdiagnosed condition.  In the case of infertility, a few popular theories are under investigation.  In some cases, endometriosis can cause scar tissue, which may directly interfere with conception.  For example, if the scar tissue forms in the fallopian tubes it could block the normal travel of the egg to the ovaries.  Another theory revolves around the changes in the uterus and the possibility that an embryo has trouble implanting.