After menstruation, if a woman experiences pain in her belly and back pain, it is most likely due to gynecological diseases. Severe pelvic congestion, pelvic effusion, pelvic adhesions, inflammation of the endometrium, inflammation of the cervix, cervical erosion, etc., may cause such symptoms. Also, if you don’t rest well during menstruation, you are more strained, resulting in lumbar muscle strain, which can also cause pain in the lower back and pain in the small stomach. In addition, if a woman has ovarian cysts, uterine fibroids, etc., as well as adenomyosis, she is also prone to pain after her menstrual period clears. For this symptom, it is recommended to go to the hospital in time to have a pelvic ultrasound examination, to know the specific situation of the pelvis. At the same time, pay attention to rest, avoid strenuous exercise and prevent infection.