If the belly grows larger during pregnancy, but the weight does not increase, it clinically indicates that the pregnant woman herself appears to be wasting, while the fetus is still developing relatively well. It is recommended to do the following tests to find out if there are other abnormalities in the body, such as liver and kidney function tests, to find out if there are lesions in the liver and kidneys that could cause the pregnant woman to lose weight. In addition, if it is in early pregnancy, due to pregnancy vomiting in the clinical inability to eat, the pregnant woman itself will lose weight, while the fetal development is still good at this time, to give a good distinction. If it is in the late stage of pregnancy, only the stomach grows then the weight does not increase, in the clinical must cause a high degree of attention to understand whether there is a problem with the body, and it is recommended that must strengthen nutrition.