Pain around the umbilicus during menstruation may be a sign of dysmenorrhea, or it may be caused by endometriosis, appendicitis or intestinal diseases. 1. Dysmenorrhea: Women may experience abdominal pain during menstruation due to pelvic congestion and the effect of prostaglandins, which mostly occurs at the beginning of menstruation. 2. Endometriosis: women during menstruation pain around the umbilicus, there may be ectopic endometrium caused by pelvic adhesions, menstruation, localized endometriosis foci bleeding pull lead to pain and discomfort around the umbilicus. 3. appendicitis: women in the menstrual period of pain around the umbilicus, there may be appendicitis early manifestations, in the early stages of appendicitis, due to the pulling of the nerves, the patient may feel the pain around the umbilicus. 4. Intestinal diseases: When menstruation is combined with intestinal diseases such as enteritis, intestinal flora disorders, etc., pain and discomfort around the umbilicus may also occur, which may be accompanied by abnormal bowel movements. There may be other reasons for the pain around the umbilicus during menstruation. If the symptoms of pain around the umbilicus are serious, or if the symptoms persist and do not get better, you should go to the hospital in time to avoid serious consequences.