A soft bulge at your newborn's navel that pushes out when they cry, strain, or cough, and flattens back down when they're relaxed, is almost always an umbilical hernia — a common, usually painless gap in the abdominal muscle that closes on its own in most babies within the first year or two. A moist, pinkish-red lump that stays the same size regardless of crying, sometimes with a little discharge, is a different and equally common finding called an umbilical granuloma. Both are ordinary parts of the cord stump healing and neither needs urgent treatment on its own.

Umbilical hernia vs umbilical granuloma — how to tell them apart

  • Umbilical hernia: a soft bulge that gets bigger and more prominent with crying, straining, or coughing, and flattens or disappears when your baby is calm and lying down. It's covered by normal skin and is usually painless.
  • Umbilical granuloma: a small, moist, pinkish-red or yellowish lump that forms after the umbilical cord stump falls off, usually within the first few weeks. It doesn't change size with crying and can ooze a little clear or yellowish discharge. It's leftover tissue from the healing process, not a hole in the muscle.
  • Some babies have a bit of both at the same time, which is one reason a doctor's look is worth getting even when neither looks alarming.

Why umbilical hernias happen

Before birth, the umbilical cord passes through an opening in your baby's abdominal muscles. That opening normally closes up on its own around birth or in the months after. When it closes more slowly, abdominal contents (usually just a bit of fatty tissue or bowel lining, never anything dangerous) can push out through the gap whenever pressure inside the belly rises — exactly what happens during crying, coughing, or straining to pass stool. This is extremely common in newborns, especially babies born early, and is not caused by anything you did or didn't do.

What to do about it

  • Umbilical hernia: in most babies, no treatment is needed — the muscle gap typically closes on its own by 1–2 years of age as your baby grows. Doctors generally don't recommend taping a coin or cloth over it; this doesn't speed closure and can irritate the skin.
  • Umbilical granuloma: your doctor may simply monitor it, since many resolve without any intervention. If it persists, a clinic-based treatment (commonly silver nitrate cauterisation) is quick and effective — this is a decision for your paediatrician to make in person, not something to attempt at home.
  • Keep the area clean and dry in both cases — plain water is enough; there's no need for antiseptic washes unless your doctor specifically advises one.

When to see your doctor sooner rather than at the next check-up

  • The bulge becomes hard, tender, discoloured, or won't push back in
  • Your baby seems to be in pain when the area is touched, is vomiting, or seems generally unwell
  • The discharge from a granuloma turns foul-smelling, increases suddenly, or is accompanied by redness spreading across the skin
  • You're simply not sure which of the two you're looking at — a quick visual exam settles it, and there's no downside to asking

A bulge that only shows up with crying and flattens the rest of the time is the single most reassuring pattern here — it's the hallmark of an ordinary umbilical hernia, not an emergency.

Frequently asked

Does an umbilical hernia hurt my baby?

Almost never. Umbilical hernias in babies are typically painless — your baby cries because crying is what pushes it out, not because the bulge itself hurts. Pain, firmness, or a bulge that won't flatten back down is different and worth a same-day call to your doctor.

Will taping a coin over the belly button help it close faster?

No — this is a common home remedy but it doesn't speed up closure of the muscle gap, and the tape can irritate a newborn's sensitive skin. The gap closes on its own timeline as your baby's abdominal muscles mature.

How long does an umbilical granuloma take to go away on its own?

Some clear up within a couple of weeks as the healing cord stump area finishes settling. Others persist longer and benefit from a quick in-clinic treatment. Either way, it's worth having it looked at rather than guessing which path yours will take.

At what age should I worry if the hernia hasn't closed?

Most umbilical hernias close by 1–2 years of age. If it's still present beyond that, or if it's unusually large, your doctor will talk you through the options at your routine visits — this is a conversation for a scheduled check-up, not a sign that something has gone wrong.