Endometriosis is one of the most common gynecological disorders. Nevertheless, it is still not widely known. In women with endometriosis, the mucous membrane lining the womb also grows in other parts of the body. Abdominal pain and cramps and nausea are typical symptoms. At the start they often occur during a woman’s period, but afterwards there is no connection between the two. Because period pain is so common, many women simply attribute it to menstruation itself. Usually women do not seek medical help until they become worried about the degree of their pain or if they cannot become pregnant.