The constipation that occurs during the period of sitting on the moon is generally related to the lack of postnatal exercise, postnatal diet, mental and psychological factors. 1. Lack of exercise after childbirth: women in the postnatal period generally need to maintain and restore the body, plus the need to take care of the child, long-term bedridden, it is easy to lack of exercise, so the bowel movement will slow down, it is easy to produce constipation. 2. Postpartum diet: postpartum general diet is nutritious, most of the food containing high fat, high protein, rich in dietary fiber or vitamin food will occasionally be ignored, the lack of dietary fiber food intake, but also easy to cause constipation. 3. maternal physical weakness: some women are more susceptible to various influences, such as fear of pain, do not like to get out of bed, etc., may have gradually developed the habit of having inconvenient bowel movements, constipation may occur over time. Constipation during menstruation, you can drink more water and eat vegetables, application of corkscrew and so on to promote defecation.