If you stop swimming immediately during your menstrual period, the vaginal bleeding and the relaxation of the cervical opening during menstruation can easily cause vaginal or pelvic infections. Women’s body resistance is low during menstruation, if the water in the swimming pool is relatively cold, the cold water can easily cause vasospasm in women, which can easily lead to menstrual cramps, low menstrual flow or more menstrual blood clots in women. If abdominal pain or abnormal vaginal discharge does not occur after stopping swimming, it proves that this swimming has not affected menstruation. If abnormalities occur, timely treatment should be carried out according to the patient’s clinical symptoms.