人在睡觉时以右侧卧位为好,因为心脏位于胸腔左侧,采用这种睡姿可以减少对心脏的压力。对孕妇来说,情况却正好相反,而应以左侧卧位为宜,这样不但有利于孕妇将来的分娩,还有利于胎儿的生长发育。随着胎儿胎龄的增加,孕妇的子宫不断增大,到临产前,腹腔多被子宫占据了,使其它组织器官受到挤压。由于下腹部乙状结肠的解剖位置关系,这时孕妇的子宫会不同程度地向右旋转,从而使维护子宫正常位置 When sleeping in the right lateral position as well, because the heart is located in the left side of the chest, using this sleeping position can reduce the pressure on the heart. For pregnant women, the situation is the opposite, but should be appropriate to the left lateral position, this will not only be conducive to the future delivery of pregnant women, but also conducive to the growth and development of the fetus. With the increase of fetal gestational age, pregnant women’s uterus continues to increase, to prenatal, celiac and more occupied by the uterus, so that other tissues and organs are squeezed. Due to the anatomical location of the lower abdomen sigmoid colon, when the womb of pregnant women will be rotated to different degrees to the right, so that the normal position to maintain the uterus