Obstetrics is a specialized branch of medicine that deals with the care of women during pregnancy, childbirth, and the postpartum period. It encompasses a wide range of services, including prenatal care, labor and delivery support, and postpartum care. Nurses who specialize in obstetrics, often referred to as obstetric nurses or perinatal nurses, play a crucial role in ensuring the health and well-being of both the mother and the baby.