The symptoms of endometriosis, which are more common in clinical practice, are progressive worsening of dysmenorrhea, joint pain, anal cramping, combined with irregular vaginal bleeding and increased menstrual flow. The symptoms of endometriosis are caused by the migration of the normal endometrium to the myometrium, resulting in metastasis of the endometrium in various parts of the pelvis. The clinical manifestation of metastasis to the myometrium is a progressive increase in dysmenorrhea, which becomes more severe with age, and may cause anal cramping, painful sex, and in severe cases, infertility due to the increased size of the uterus. Endometriosis can be diagnosed clinically by medical history, as well as by ultrasound and internal examination.