Is a little vaginal bleeding normal in a newborn?

What does the evidence show for newborn vaginal bleeding?

• Maternal hormones can produce temporary changes in a newborn’s genital tissues, including white discharge, puffiness and a small amount of vaginal blood. These are different from an ongoing menstrual cycle. Do not assume all blood seen in a diaper comes from the vagina. 1
• AAP symptom guidance describes light newborn spotting beginning within the first days of life and lasting only a few days. Bleeding that continues, becomes heavier or appears outside the expected newborn window warrants assessment. General timelines for other hormonal changes do not justify waiting weeks over bleeding. 2
• Uric-acid crystals can make early urine look pink or orange, which may be confused with blood. The early newborn visit checks feeding, hydration, weight and urine patterns. If the source is uncertain, describe the diaper finding and let the clinician assess it. 3
• Keep diaper care gentle and avoid inserting anything into the vagina. Note when spotting began and whether it is decreasing. New unusual discharge, apparent injury, increased bleeding or a baby who looks ill should prompt a call rather than repeated cleaning to check the area. 2
• A baby younger than three months with a rectal temperature of 100.4°F or higher needs immediate medical advice. Do not attribute fever or poor responsiveness to normal hormonal adjustment, and do not give fever medicine first to see whether a concerning newborn improves. 4

When should I call my provider about newborn vaginal bleeding?

Get urgent assessment for active or increasing bleeding, pallor, poor feeding, unusual bruising or a baby who is difficult to wake. A rectal temperature of 100.4°F or higher in a baby under three months needs immediate medical advice. Call emergency services for collapse or breathing difficulty.