Because the timing of abdominal pain and other concomitant conditions vary, the exact cause of the pain varies from woman to woman. If a woman has abdominal pain in the early stages of pregnancy, it is often necessary to consider whether the abdominal pain is caused by pre-eclampsia or ectopic pregnancy, accompanied by irregular vaginal bleeding, and it is necessary to check ultrasound to confirm whether the pregnancy is intrauterine or ectopic, and to check blood hcg and progesterone to confirm the problem. If the abdominal pain is diagnosed to be caused by preterm abortion, progesterone is often required for symptomatic fetal preservation. If the soreness in the abdomen occurs during non-pregnancy and after intercourse, and is accompanied by anal swelling and increased leucorrhea discharge, it should be considered to be caused by pelvic inflammatory disease, which may also lead to urinary tract infection symptoms such as frequent, urgent and painful urination, because the pelvic cavity and bladder are adjacent, so it often stimulates inflammation of the bladder. If a woman is experiencing soreness in the abdomen during her menstrual period, as well as swelling and pain in the lumbosacral area, then it should be considered a manifestation caused by dysmenorrhea. The primary dysmenorrhea is mainly caused by prostaglandin stimulation, while the secondary dysmenorrhea is considered to be caused by ovarian chocolate cysts or adenomyosis.