Pain is a subjective human sensation, and the pain felt during childbirth and menstrual cramps varies from person to person, so it is impossible to tell exactly how many times more painful childbirth is than menstrual cramps. Pain is medically classified into 10 levels, with severe dysmenorrhea likely to be a 7-8 level of pain and childbirth the equivalent of a 10 level of pain. Dysmenorrhea is caused by increased prostaglandin content in the endometrium, adenomyosis, endometriosis, etc. If a woman’s dysmenorrhea seriously affects her daily work and life, it is recommended that she seek medical attention promptly to determine the cause of the dysmenorrhea through ultrasound, laparoscopy, etc. and give appropriate treatment according to the cause. During childbirth, severe pain can occur due to contractions, pelvic outlet and perineal dilation. With the advanced medical technology, women who are worried about the pain of childbirth can choose painless delivery according to the doctor’s recommendation. The current methods of labor analgesia include non-pharmacological and pharmacological ones. Non-pharmacological analgesia is relatively ineffective, while pharmacological analgesia is effective, including regional blockade analgesia or anesthesia, inhalation analgesia, etc.