What is perineal massage? massaging the perineum. Some women do it for themselves, and others will ask their partners to help. Often, it is done throughout pregnancy.Benefits of perineal massage.Easing pain during crowningHelping the baby’s head come out easier and/or quickerAvoid tearingAvoiding an episiotomyIt’s best to start the prenatal perineal massage around 34 weeks. Any earlier, and you may just be wasting your time.