For women of childbearing age, if they have secondary dysmenorrhea and progressive aggravation, infertility or chronic pelvic pain, pelvic examination, if they touch the cystic mass connected with the uterus or there is a tender nodule in the pelvic cavity, they can be initially diagnosed as endometriosis. However, auxiliary examinations are often needed in clinical practice. The pelvic lesions seen by laparoscopy and the biopsy of the lesions are the basis for the diagnosis, but the negative results of pathological examination cannot exclude the diagnosis of endometriosis. B-ultrasonic examination is an important method for the diagnosis of ectopic ovarian cysts, and its sensitivity and specificity are relatively high. When the endometrium and glands appear outside the uterus, it is called endometriosis.
