You can drink coffee when you have your period, but in moderation. Coffee contains acid, can promote digestion, but can not drink a lot of coffee, coffee contains a large number of caffeine sub, has the effect of excitation of the nerves, affecting sleep. Coffee contains a certain amount of acid, a small amount of drinking can stimulate gastric acid secretion, promote gastrointestinal peristalsis, moderate drinking can relieve indigestion, loss of appetite and other symptoms. However, the caffeine in coffee has an excitatory effect on the nerves. Drinking a large amount of coffee can speed up the heart rate of women and accelerate blood circulation, which may lead to an increase in the amount of menstruation, and may also cause insomnia and excitement. During menstruation, you can drink coffee in moderation, avoid strong coffee, take rest during menstruation, ensure enough sleep, and don’t overwork. If you experience discomfort after drinking coffee, it is recommended that you seek medical attention in time and take appropriate methods to intervene under the guidance of your doctor.