Sheehan's syndrome is a condition that affects women who lose a life-threatening amount of blood in childbirth or who have severe low blood pressure during or after childbirth, which can deprive the body of oxygen. In Sheehan's syndrome, the lack of oxygen can damage your pituitary gland.
Sheehan's syndrome causes the pituitary gland to not produce enough pituitary hormones (hypopituitarism). Also called postpartum hypopituitarism, Sheehan's syndrome is rare in industrialized nations, largely due to improved obstetrical care. But it's a major threat to women in developing countries.
Treatment of Sheehan's syndrome involves lifelong hormone replacement therapy.