The vaginal opening is only one centimeter away from the anus after giving birth, which is considered to be related to the factors of vaginal damage, vaginal opening dilation and vaginal laxity, etc., and can be treated by drugs and surgery under the guidance of doctors. 1. Damaged vagina: generally due to the pregnant woman in the process of childbirth, excessive force caused by vaginal damage rupture, caused by the phenomenon of postpartum vaginal opening anus distance of one centimeter, can be taken under the guidance of the doctor suture repair surgery and other surgical methods to treat. 2. Expansion of the vaginal opening: It is due to the fact that when pregnant women give birth, the vaginal opening is stimulated to a certain extent, so that the vaginal opening expands, causing the vulva and the anus to be more close to each other, resulting in the phenomenon of one centimeter of distance between the anus and the vagina after delivery. 3. Vaginal relaxation: it may be due to the relaxation of the muscles of the pelvic floor of the pregnant woman after delivery, resulting in vaginal atrophy, which in turn leads to the phenomenon that the vaginal opening is only one centimeter away from the anus after delivery, which can be treated by using drugs such as tamoxifen citrate tablets and estradiol valerate tablets, etc., according to the doctor’s instructions. If the vaginal opening is only one centimeter away from the anus, you should go to the hospital in time to avoid delaying your condition.