The short legs of the fetus may be related to genetics, in addition, it may be caused by malnutrition, further examination is needed, if the legs are too short and unbalanced development, it may be a fetal malformation. If it is caused by malnutrition, you should strengthen the diet nutrition, eat more lean meat and eggs, and it is also recommended to eat more fresh vegetables and fruits, such as bananas and apples, but do not eat spicy and stimulating food to help the baby develop. However, if the fetus is developing abnormally, you need to go to the hospital for induction of labor to avoid affecting the baby’s development after delivery. It is best not to be exposed to X-rays during pregnancy, and it is also recommended not to stay up late and to exercise properly, and it is also recommended to quit smoking and alcohol to avoid affecting the baby’s development.