It is a superstition that there is no relationship between early pregnancy thirst and the sex of the fetus. The cause of thirst may be related to hot weather, excessive water loss, diet, such as the consumption of salty food, and other reasons such as dry air. If the thirst is severe, the urine increases, and the amount of food and drink also increases with weight loss, it is necessary to check the blood sugar for diabetes and the thyroid function. If the check is not abnormal and the thirst does not improve after drinking water, it is necessary to consult the endocrinology department to check the cause. If the thirst is caused by early pregnancy reaction, you need to eat less and more meals, eat light and easily digestible food, avoid eating cold, spicy, greasy and stimulating food, most of them will be gradually relieved after 12 weeks. If the thirst is accompanied by severe vomiting, it is necessary to check ion analysis, urine routine and liver function, and if the result is abnormal, it is necessary to treat with infusion.