The common causes of abdominal pain during non-menstrual period are as follows: 1, gynecological diseases: such as chronic pelvic inflammatory disease, adnexitis, cervical erosion, uterine fibroids, can lead to abdominal pain; 2, urological disorders: such as urinary tract infections, cystitis, bladder stones, and even inflammation and infection of the ureter and kidneys, which can also lead to abdominal pain during the period of non-menstrual period; 3, endocrine disorders: the patient’s body hormone level fluctuates a lot in the pre-menstrual period and during the period of menstruation, it may be due to the endocrine disorders triggered by excessive anxiety, tension, and abdominal pain may occur.