Pain during labor is caused by contractions of the muscles of the uterus and by pressure on the cervix. This pain can be felt as strong cramping in the abdomen, groin, and back, as well as an achy feeling. Some women experience pain in their sides or thighs as well Epidural: This is the most common type of pain relief used during labor. If you choose to have an epidural, a physician anesthesiologist will insert a needle and a tiny tube, called a catheter, in the lower part of your back. An epidural numbs only the lower part of your body below your belly button and allows you to be awake and alert throughout labor, as well as to feel pressure. You will be able to push when it’s time to give birth to your baby.