Thirsty every day during the monthly period may be related to the body of water, physical weakness or disease and other factors, it is recommended that pregnant women timely replenishment of water, pay attention to strengthen the resistance, for disease treatment. 1. lack of water in the body: during the monthly period every day feel thirsty may be maternal body lack of water, such as hot weather sweating, breastfeeding and so on will lead to maternal body lack of water, this time the mother should drink water in time, replenish water to relieve thirst. 2. Physical weakness: the monthly period every day feel thirsty and maternal physical weakness, maternal physical weakness during the monthly period, easy to sweat, resulting in dehydration, it is recommended that mothers should pay attention to the daily diet and nutrition, moderate exercise, relaxation of the mind, and slowly enhance the resistance. 3. Disease: during the month feel thirsty every day may be suffering from diabetes, hyperthyroidism and other diseases, it is recommended that mothers drink more water, blood glucose, thyroid function screening, for the treatment of the disease, the use of medication need to be guided by a doctor. Mothers feel thirsty every day during the month when drinking water can not be relieved, it is recommended to go to the regular hospital in a timely manner.