subinvolution

Partial or incomplete involution; as, subinvolution of the uterus.

Failure of the uterus to return to its normal size following childbirth.

Incomplete involution; failure of a part to return to its normal size and condition after enlargement from functional activity.

• s. of placental sites — failure of involution of the sites of placental attachment in a postpartum bitch causes persistent intrauterine bleeding and may result in death due to blood loss or uterine perforation.