A case of rare injury during childbirth

All authors agree that isolated vaginal tears during labor are extremely rare. Excluding transverse tears of the vagina from the cervix (Colpoparrhexis), they are usually longitudinal and, in normal childbirth, are very small and limited by the mucous membrane, and are more often observed during surgical procedures, cicatricial formations and, in general, with narrowing of the vagina, when they can reach large sizes and even penetrate the perivaginal tissue. In the adjacent cavity, these tears, especially during normal childbirth, do not penetrate, as is the case with the so-called, for example, necrosis from pressure or damage by bone fragments, when the breaks have a more rounded outline. In the cavity of the rectum, in view of its mobility and the absence of a hard and sharply limited lining, these breaks do not penetrate at all.