The time to push for the birth of a baby needs to be after the mouth of the uterus is fully open, usually during the time of uterine contractions, with breathing and contractions to push. The method of pushing can also be guided by doctors and nurses. During contractions, close your lips tightly, tighten your jaw, keep your back and waist close to the bed, and slightly tilt your tailbone. The method of pushing is similar to holding your breath for a longer period of time during a bowel movement, and then resume breathing immediately to absorb oxygen, and generally try to hold your breath twice during each contraction. Pushing properly when giving birth to a baby can help shorten the labor process, and will also reduce perineal lacerations, or reduce the extent of lacerations. Before the mouth of the uterus opens fully, you should pay attention to relaxation. Excessive tension or too much walking around may affect the physical strength of the pregnant woman, which may affect the progress of labor and prolong the second stage of labor.