Pain in the lower abdomen with anal cramps during menstruation is called dysmenorrhea. Usually, you can consider taking painkillers to relieve the pain, such as ibuprofen extended-release capsules and indomethacin, while for women with less severe menstrual pain, you can also consider taking oral Chinese medicine to relieve the pain, such as Yuanhu pain relief tablets. However, since the causes of dysmenorrhea are different, taking painkillers alone can only provide temporary relief, but cannot achieve a complete cure. Women who experience menstrual pain should first have an ultrasound to rule out whether the pain is caused by endometriosis. If the dysmenorrhea is caused by ovarian chocolate cysts, surgery is needed to remove the cysts and post-operative leuprolide injection is needed to prevent the recurrence of ovarian chocolate cysts. For women with adenomyosis, levonorgestrel intrauterine device can be considered to relieve dysmenorrhea and reduce menstrual flow.