Drinking iced water when you have your period may cause abnormal menstruation and also trigger symptoms of gastrointestinal discomfort, so you should try to avoid getting cold and eating cold food during your period. Eating cold and iced foods during menstruation may lead to clotting of menstrual blood and symptoms of blood clots and abdominal pain. The cold stimulation will reduce the speed of blood circulation and affect the contraction of the uterus and the discharge of menstrual blood, leading to poor discharge triggering dysmenorrhea, and may also lead to low menstrual blood volume or even cessation of menstruation. In addition, because the function of the gastrointestinal tract is relatively weak during menstruation, women are more sensitive to cold stimulation, and the blood supply to the gastrointestinal tract is relatively reduced during menstruation, which leads to gastrointestinal discomfort, causing abdominal pain, bloating, vomiting, diarrhea and other symptoms. During menstruation, you should pay attention to keeping warm, you can use a warm water bag to apply heat to the abdomen to promote blood circulation. Pay attention to keeping the perineum clean and avoid swimming and tub bathing to avoid infection. Pay attention to nutrition and eat more protein-rich foods, such as meat, milk, eggs, etc., to promote tissue repair.