The causes of pregnancy fat, including overnutrition, hormonal changes, fetal growth, is generally a normal phenomenon, do not have to worry too much. 1. Excessive nutrition: after pregnancy, pregnant women need to bear the burden of the fetus and their own nutritional intake, will eat more than usual, if not active also easy to get fat. 2. Hormonal changes: changes in hormone levels in the body after pregnancy, the placenta will produce hormones, pregnant body estrogen and progesterone levels will increase, estrogen and progesterone levels will increase will lead to changes in the body’s endocrine endocrine changes can easily lead to obesity. 3. Fetal growth: after pregnancy, the uterus increases in size, the amniotic fluid in the uterine cavity, the placenta and the fetus will gradually increase in size, these factors together will cause the whole pregnancy weight gain, pregnant women become fat. Generally speaking, the weight of pregnant women belongs to the normal range of pregnancy, is a normal physiological phenomenon, don’t worry too much, but also pay attention to small meals, moderate exercise, such as walking, yoga, etc., weight control, pay attention to nutrition, regular pregnancy check.