Pregnant women can not put their legs on the wall lying, because this position will lead to continuous contact with the wall, the wall is cooler will lead to pregnant women’s legs appear to be cold, once cold will lead to the slowing down of blood circulation in the tissues around the muscles, the metabolites produced can not be effectively and timely metabolism, there will be inflammation buildup, the peripheral nerves around the stimulation of the pain will occur, the pain has a The pain may cause the fetus to be affected, therefore, it should never be done. The correct method is to lie down in the horizontal position in the bilateral knee joints and the back of the calf with soft pillows or quilts, flexion of the hip and knee can effectively keep the muscles of the legs and waist in a state of full relaxation. Elevating the lower limbs in this way also helps to eliminate swelling in the lower legs. In the side-lying position can also be in the bilateral knee joints and calves between the pad soft pillow, to keep the lower limbs in a parallel state, flexion of the hip, flexion of the knee can keep the leg and waist muscles in a relaxed state.