Pregnant women’s stomach is strangled by the pants out of the mark usually will not have too much effect. Because the fetus moves around in the uterus, there is a certain amount of space, and the uterus is filled with amniotic fluid, which has a certain amount of cushioning effect on external pressure. So when the uterine wall is slightly squeezed, the amniotic fluid can protect the fetus from external pressure. In spite of this, if the pants are too tight, the pregnant woman’s stomach is strangled out of the mark, not only the pregnant woman herself feels uncomfortable, but also is not conducive to the blood circulation of the pregnant woman’s abdominal skin. If the pants are too tight will also indirectly oppress the uterus, resulting in fetal activity is limited, long-term may also affect the growth and development of the fetus. Therefore, it is recommended that pregnant women wear loose, breathable pants, do not need to be too loose or too tight, in order to pregnant women feel comfortable prevail.