Failure to Remove the Retention Suture.

Failure to Remove the Retention Suture.
As the cow went into labor the owner failed to remove the retention suture. The cow forced the calf through the weakened vaginal wall and through the perineal skin. Unattended, unassisted spontaneous vagina delivery. Picture was taken several hours after delivery when the traumatized, necrotizing vagina wall had dried out.

Lane VM (2013)