The gold standard for diagnosing endometriosis in women is laparoscopy. Under laparoscopy, the lesions of endometriosis can be clearly seen, the severity of the condition is understood, and it can also serve as a surgical treatment. However, generally speaking, this method of examination tends to be relatively expensive, so other methods are usually used for a comprehensive evaluation. For example, understanding the normal menstrual cycle, the duration of menstruation, and the presence or absence of dysmenorrhea. In addition, some related auxiliary examinations, such as vaginal ultrasound, can be combined to check for any abnormal cysts on the ovaries and the echo characteristics of the cyst content. Blood tests for CA125 can also aid in the diagnosis if a significant increase is observed.