There is no exact method of fast defecation, but constipation during menstruation can be promoted through general treatment, medication and other ways to promote defecation. 1. General treatment: For women who are constipated during menstruation, they should pay attention to their diet, and can eat foods containing dietary fiber, such as dragon fruit, bananas, apples and so on, which can promote intestinal peristalsis. You should also drink more water, and the daily water intake should be about 1.5L to increase the water content in the feces. At the same time, appropriate exercise to increase intestinal peristalsis. Keep a good mood, avoid excessive stress. 2. Medication: If the effect of life conditioning is not ideal, you can also choose medication. You can use drugs such as Kesler, which can lubricate the intestinal wall and soften the feces. You can also take lactulose, polyethylene glycol and other drugs, which is conducive to the discharge of feces. For women who are constipated during menstruation, they should first adjust their lifestyle and standardize the use of medication under the guidance of a doctor if necessary.