It is not certain how big the baby will be when you give birth, because the physical condition of each mother is different. Generally speaking, about 6 pounds is the most suitable for a normal delivery. Because every mother’s physical condition is different, whether or not the perineum is torn in normal labor depends mainly on the condition of the birth. Generally speaking, perineal tears occur when the perineum is underdeveloped or in the case of a rapid labor. A large fetus is also prone to tearing, and perineal tears are more likely to occur with a fetus larger than seven pounds. Generally speaking, if the fetus is around 6 pounds, the labor will go smoothly and perineal tear is less likely to occur. It is recommended that you cooperate with your doctor before delivery and decide on the mode of delivery according to the actual situation. If you have a normal delivery, you should pay attention to the doctor’s instructions and push correctly during labor, which is conducive to the smooth progress of labor.