Period, nausea, nausea.

Women show nausea and vomiting during menstruation, mainly considering the following three possibilities: 1. Patients with menstrual cramps combined with gastrointestinal function diseases, patients only occasionally show nausea and vomiting during menstruation, rather than each menstrual cramps, depending on the situation. 2, premenstrual syndrome, women due to psychological and social factors, ovarian hormone levels fluctuations or neurotransmitter abnormalities and other factors, can show menstrual cycle nausea, vomiting, breast pain, emotional instability, constipation, headache and other related clinical symptoms, can choose to take oral contraceptives. 3, abnormal pregnancy caused vaginal bleeding and accompanied by nausea and vomiting. Not true menstruation, but pregnancy. After pregnancy, HCG levels can cause nausea, vomiting and other early pregnancy reactions.