Do a lot of people get puerperal psychosis?

No: Puerperal psychosis occurs in 1 or 2 out of 1000 childbirths, usually in young, first-time mothers. This might seem like a pretty significant group, but compared to other postpartum disorders it's relatively rare. Maternity blues affects 50-75% of new mothers and postpartum depression is seen in 10-15% of new mothers. These women likely have other mood disorders like bipolar.

Not Many: Puerperal psychosis occurs in 1- 2 out of 1000 childbirths, usually in young, first-time mothers. Compared to other postpartum disorders it's relatively rare: maternity blues affects 50-75% of new mothers and postpartum depression is seen in 10-15% . This condition is a medical emergency requiring immediate attention. A mother hallucinating can be very dangerous to herself & the baby.