It is best not to drink coffee during menstruation because it contains a lot of caffeine, which can easily lead to the occurrence of insomnia after drinking. Decreased sleep quality can lead to discomfort during menstruation, or lead to increased menstrual blood, longer duration, and in serious cases, may also affect the normal menstrual cycle. Too much coffee can lead to excessive excitement and may also affect the normal level of hormones in the body, thus affecting normal menstruation. Excessive coffee intake may also produce a certain dependence, which is not good for the body. Excessive coffee intake during menstruation can also cause gastrointestinal discomfort, and some women may also experience a decrease in appetite, affecting normal caloric intake. If you don’t pay attention to your diet during menstruation, you should pay attention to a reasonable diet, a small number of meals, etc.