The need for an internal examination at 42 days postpartum varies from person to person. If you had a cesarean section, or if you did not have any side cuts or lacerations during labor, you may not need an internal exam for 42 days after delivery. Otherwise, an internal examination is usually required. The purpose of the internal examination at 42 days after delivery is to check whether the side-cut wound has recovered properly. If the mother did not have any side cuts or lacerations during labor, or if she had a cesarean section and is recovering well, then you can skip the 42-day postpartum checkup and just have an ultrasound or other checkup. Otherwise, it is recommended to do an internal examination to check the recovery of the cervix and other parts of the uterus to avoid infection. In addition, if the cervix or vagina shows symptoms of lesions 42 days after delivery, you may also need to have an internal examination to clarify the condition as soon as possible. It is not harmful to the body and there is no pain. To be on the safe side, it is recommended to have an internal examination 42 days after delivery to check whether the vagina, uterus and cervix are back to normal, and whether there is any inflammation and abnormal secretion.