How long it takes to have a painless delivery varies from person to person, usually between 5-12 hours and no more than 24 hours at most. Usually it takes longer for the first child and shorter for the second. The most common way to have a painless delivery is through epidural anesthesia, where an epidural puncture is performed in the lumbar back of the pregnant woman, and then an epidural catheter is placed, through which a small amount of anesthetic drugs can be pushed in continuously, which are diluted and applied, causing less harm to the pregnant woman and the fetus, and not affecting the progress of labor, and there are usually no after-effects such as back pain. Painless delivery can only be performed when the opening of the uterus is more than 2 centimeters, and natural delivery is usually possible in less than 24 hours. If the progress of labor is slow or if there is an abnormal fetal heartbeat, it is necessary to change to a cesarean section in time to allow the fetus to be born successfully.