The root cause of abdominal cramps during menstruation is due to pelvic congestion, as follows: 1, the root cause: pelvic congestion during menstruation may cause intestinal cavity stasis, causing a reduction in intestinal peristalsis, abdominal distension, cramps; 2, triggering factors: cold can aggravate the pelvic organs stasis, triggering irregular intestinal peristalsis, abdominal cramps symptoms. Because women are in bleeding and blood loss state during menstruation, they are weak, if they consume more cold drinks, cold food and indigestible food, it may further aggravate intestinal stasis, and intestinal stasis can aggravate constipation and abdominal colic symptoms. Therefore, during menstruation, you should pay attention to keep your abdomen warm and consume hot, easily digestible food to avoid abdominal distension and colic during menstruation.