April and May are generally considered to be the best seasons for childbirth. Many mothers are afraid of giving birth in winter and are afraid of unsafe factors such as flu, severe cold, and various diseases. Yes, giving birth in the winter can be somewhat dangerous for moms: What should moms prepare for a winter birth? Hypertensive syndrome. When the weather is cold in winter, expectant mothers\’ peripheral blood vessels constrict, reducing heat loss. But this will increase the burden on the heart and increase the risk of high blood pressure, which is not good for both mother and baby. Therefore, pregnant women should pay special attention to regular physical examinations in the hospital in winter, and measure one at home every day if possible.