You can eat grapefruit during menstruation, grapefruit does not affect the onset of menstruation, but if the gastrointestinal tract usually does not function well, it is easy to have diarrhea symptoms, you can not eat grapefruit, because grapefruit is a relatively cold fruit. In addition, during the menstrual period can not eat things, there are sorbet, cold drinks or too greasy food, such as cake, chocolate, because too greasy food, will stimulate the gastrointestinal tract easy to cause poor gastrointestinal tract function, nausea, abdominal distension. Drinking strong tea can also increase mental tension and cause menstrual tension syndrome. During menstruation, you should also pay attention to keeping your lower abdomen warm, and if you have abdominal pain, you can also use brown sugar and ginger water to help relieve menstrual pain and promote the timely discharge of menstrual blood. During menstruation, you should also pay attention to regular rest and rest, not to stay up late, and avoid mood swings. You should also avoid intercourse during your menstrual period to avoid endometrial inflammation.