Involution

Definition

Involution in the context of anatomy and physiology during pregnancy, labor, and birth refers to the process by which the uterus returns to its pre-pregnancy size and condition. This natural regression occurs over weeks following childbirth as hormonal changes signal the body to reduce the enlarged state of uterine tissues.

Related terms

Postpartum period: The phase immediately following childbirth where the mother's body undergoes various physiological changes, including involution.

Oxytocin:

A hormone that promotes uterine contractions during labor and stimulates involution after delivery.

Lochia: The vaginal discharge after giving birth, containing blood, mucus, and placental tissue, indicating the process of involution is underway