Reasonable exercise before delivery can help promote natural childbirth and reduce the pain during natural childbirth. The prenatal exercises that can help smooth labor include the following: 1, walking: a proper walk for pregnant women can help the fetus fall into the pelvis, relax the ligaments and prepare for childbirth. Pregnant women can choose to take a walk in the morning and evening after meals for an hour, about 30 minutes each time. Wear flat shoes when walking, and try to walk in the park near your home; 2. Climbing stairs: pregnant women can climb stairs to exercise the thighs and buttocks muscles to help the fetus into the pelvis and accelerate the first stage of labor. However, pregnant women climbing the stairs should not be overworked, must hold the handrail, rest in time to feel fatigue, down the stairs need to pay attention to the feet; 3, deep squat: pregnant women appropriate deep squatting can also help the smooth delivery, but need to pay attention to the strength and time, if you feel more difficult squatting, do not force; 4, cross-legged to sit: pregnant women cross-legged to sit on the feet can exercise the thighs and hip muscles, conducive to the smooth delivery. Pregnant women may be more difficult to complete this posture, reliable wall to support the back, or place a mat under the thighs, the back needs to be straight.