PPH can be primary (within 24 hours of delivery) or secondary (24 hours to 6 weeks postpartum). Primary PPH is classified by blood loss volume and can be atonic (uterine atony) or traumatic (genital tract trauma). Management of primary PPH includes IV fluids, uterotonics like oxytocin, bimanual uterine compression, tamponade techniques, and conservative or radical surgeries if bleeding persists. Secondary PPH is usually due to retained placental fragments and treated with antibiotics and uterine evacuation.