Postpartum hemorrhage

How recovery typically progresses

Immediately after

First days

During the first 24 hours after birth, hospital teams measure bleeding and assess uterine tone, the placenta, the birth canal, vital signs, and clotting when hemorrhage is suspected. Heavy or gushing bleeding, rapidly filling pads, dizziness, weakness, confusion, or a fast heartbeat requires an immediate emergency response even before a measured volume is known.

Settling in

Early weeks

From postpartum day 2 through about two weeks, lochia should generally become lighter rather than suddenly heavier. Soaking a pad in an hour, passing a clot larger than an egg or tissue, bad-smelling discharge, fever, increasing pelvic pain, faintness, or weakness requires immediate contact or emergency assessment for secondary hemorrhage or infection.

Longer arc

Beyond six weeks

Delayed postpartum hemorrhage can occur up to 12 weeks after birth. New heavy bleeding after it had slowed, recurrent gushing, large clots, dizziness, shortness of breath, palpitations, or marked weakness should not be dismissed because a routine postpartum visit has passed. Retained tissue, infection, subinvolution, and clotting problems are among possibilities clinicians assess.

What does the evidence show for postpartum hemorrhage?

• ACOG explains that lochia normally begins red and becomes lighter and pinker within days, while postpartum hemorrhage produces much heavier or gushing bleeding, large clots, or signs such as faintness, weakness, confusion, rapid heart rate, and pale clammy skin. It can occur within 24 hours or up to 12 weeks later. 1
• Current CDC urgent-warning guidance directs postpartum patients to seek immediate medical care for bleeding that soaks at least one pad in an hour, a clot larger than an egg, passage of tissue, or bad-smelling discharge. This symptom threshold is more useful at home than trying to estimate blood volume. 2
• ACOG's clinical definition for early hemorrhage is cumulative blood loss of at least 1,000 mL or bleeding accompanied by signs or symptoms of low circulating volume within 24 hours after birth. A patient should not wait to measure 1,000 mL when heavy bleeding or shock symptoms are present. 3
• A clinical review organizes major causes as uterine tone, trauma to the genital tract, retained placental tissue, and clotting problems. Assessment may include uterine tone, inspection for laceration or hematoma, placental completeness, vital signs, blood work, and imaging selected for the suspected cause. 4
• An evidence review of secondary postpartum hemorrhage identifies sudden, very heavy, or increasing bleeding, passage of clots or tissue, unpleasant-smelling discharge, fever, chills, and abdominal pain as concerning features. Retained placental tissue and uterine infection are important causes considered after the first 24 hours. 5

When should I call my provider about postpartum hemorrhage?

Seek immediate medical care for bleeding that soaks at least one pad in an hour, gushing blood, a clot larger than an egg, passage of tissue, or bad-smelling discharge. Call emergency services for fainting, confusion, severe weakness, trouble breathing, chest pain, a rapid heartbeat with dizziness, pale or clammy skin, severe abdominal or perineal pain or swelling, or bleeding too heavy to travel safely. Postpartum hemorrhage can occur up to 12 weeks after birth. Whatever the pattern, any symptom that feels beyond your usual range is a reason to call: obstetric teams expect these questions and would rather hear early than late.