Vomiting during menstruation: 1, due to the reduction of hormone levels in the body, women have a loss of appetite, and if they encounter special smells or greasy food, they will have nausea, vomiting and other gastrointestinal discomfort; 2, if the amount of female bleeding is small, it may be early pregnancy, pre-eclampsia and mistaken for menstruation, so it may be early pregnancy after pregnancy vomiting and other early pregnancy 3. During menstruation, women who happen to have a cold or eat unclean food may also suffer from vomiting. Therefore, when women vomit during menstruation, they should pay attention to proper rest, keep warm, drink more water or millet porridge to help the digestion and absorption of the gastrointestinal tract, and if necessary, go to the hospital for gynecological ultrasound and blood tests for chorionic gonadotropin levels, and take appropriate treatment according to the different causes.