The internal examination of a pregnant woman requires the complete removal of one pant leg, fully exposing the perineum, and is usually performed in late pregnancy to assess the cervical opening and pelvic condition. The internal examination is usually performed in late pregnancy before delivery, and requires the complete removal of one pant leg (including underwear), lying on the examination bed with the legs flexed and spread apart, feet in stirrups, and in the cystotomy position, fully exposing the perineum. Pregnant women may breathe deeply during the examination to relieve tension. After disinfecting the perineum, the doctor will wear examination gloves and reach into the vagina to perform an internal examination to assess the cervical condition, pelvic shape and internal diameter (whether it is narrow or not, and whether it is suitable for a normal delivery), and the position of the descending head of the foetus, etc. This is of some significance in the subsequent choice of delivery method and prenatal treatment.