When women suffer from endometriosis, the typical symptom is progressively worsening dysmenorrhea. What is progressively worsening dysmenorrhea? It is mainly because the ectopic endometrial tissue also becomes congested, swollen, and sheds each month during menstruation, causing the ectopic lesions to gradually enlarge, thus making the dysmenorrhea increasingly painful. Some women may have ovarian endometriomas or ectopic endometrial lesions in the posterior cul-de-sac of the vagina, which can also cause severe pain during intercourse. Ovarian endometriomas can also affect the normal ovulation of the ovaries, leading to menstrual cycle disorders, such as irregular menstruation or increased menstrual flow, among other phenomena. Endometriosis can also alter the pelvic environment, leading to difficulties in conception for women.