You can drink less coffee in moderation during menstruation, but it is not recommended to drink too much. Because coffee contains a kind of caffeine, too much caffeine intake will increase the consumption of B vitamins stored in the body, causing insomnia, anxiety, easily agitated and other emotional instability in women. The excessive consumption of coffee during menstruation can easily cause an increase in estrogen secretion in the body, resulting in breast pain, endometriosis, gynecological tumors and other diseases, as well as affecting the ovaries, the number of eggs, so that ovarian function declines as soon as possible, causing premature aging of women. During menstruation, you need to pay attention to rest, keep your mood relaxed, and develop regular habits of work and rest. You should eat more fresh vegetables and fruits, and avoid spicy and stimulating foods.