If a small amount of hawthorn is eaten during menstruation, it will not significantly affect the menstrual period or the amount of bleeding. If an excessive amount of hawthorn is eaten, it may stimulate the uterus to contract and increase discomfort during menstruation, and may even lead to heavy bleeding. Hawthorn contains sugars, vitamins, trace elements, calcium, iron and other substances, which have the function of moving qi and eliminating stagnation, activating blood circulation and relieving pain, and can be eaten in small amounts during menstruation to relieve the low menstrual flow and dysmenorrhea caused by cold clotting and blood stasis. It can also replenish the nutrients lost during menstruation, promote appetite and improve their resistance, but sour hawthorn taste sour can play a certain beneficial effect, can not eat too much at once, to avoid increasing menstrual bleeding or lead to excessive stomach acid, put hawthorn into porridge into hawthorn porridge or boiled hawthorn with sugar water is a good way.