Perinatology
Perinatology is a subspecialty of obstetrics concerned with the care of the fetus and complicated, high-risk pregnancies. Perinatology is also known as maternal-fetal medicine. Since the perinatal period, depending on the definition, starts at the 20th to 28th week of gestation and ends 1 to 4 weeks after birth, perinatology logically could be an obstetrical and Pediatric subspecialty but, in practice, it is part of obstetrics. The comparable area of Pediatrics is neonatology. A high-risk baby might be cared for by Perinatologists before birth and by a neonatologist after birth.
