Umbilical Cord Care: Cleaning, Healing & Infection Signs

Umbilical cord care is simpler than most parents expect: keep the stump clean and dry, fold the nappy down below it, and let it fall off on its own. In most babies it dries, turns dark and drops off within one to two weeks, and up to about three weeks is still normal. You do not need powders, oils or special bandages.

What matters more is knowing what normal healing looks like, so you can spot the few signs that need a doctor. This guide covers daily care, what happens when the stump falls off, infection warning signs, and the two common belly button bumps: granulomas and hernias.

What the cord stump is and how it heals

After birth, the umbilical cord is clamped and cut, leaving a short stump of about 2 to 3 cm with a plastic clamp. The clamp is usually removed in hospital once the stump has dried a little, often within the first day or two. In Singapore, a little cord blood is also taken at birth for routine G6PD deficiency screening.

Over the next days the stump changes from a moist, yellowish-white colour to brown, grey or black, and becomes hard and shrivelled. This drying process is how it separates, so a dark, crusty stump is a good sign, not a sign of infection. SingHealth’s newborn care advice notes that the cord usually falls off on its own in about seven to ten days.

How to clean the umbilical cord, step by step

Most hospitals now recommend “dry cord care”: keeping the stump clean and dry and otherwise leaving it alone. Some hospitals still hand out alcohol swabs or give their own instructions, so follow your discharge notes if they differ from the steps below. If your baby is being cared for in a neonatal intensive care unit, follow the nurses’ guidance there.

1. Wash your hands before touching the cord area.
2. Check it at each nappy change. If it looks clean and dry, you do not need to do anything.
3. If it is sticky or dirty, for example from pee or poo, gently clean around the base with cotton wool dipped in cooled boiled water.
4. Pat it dry with a clean, dry piece of cotton wool or a soft cloth. You can lift the stump gently by the end to reach the base.
5. Fold the nappy down below the stump, or use newborn nappies with a cord cut-out, so air can reach it and urine does not soak it.
6. Dress your baby in loose cotton, which suits Singapore’s heat and does not rub on the stump.

Bathing before and after the cord falls off

Until the stump falls off and the belly button has healed, stick to sponge baths or top-and-tail washes so the area stays dry. If the stump does get wet, simply pat it dry afterwards; a splash is not a problem.

Once the stump has come off and the belly button looks dry, with no oozing, you can move on to tub baths. Our step-by-step guide on how to bathe a newborn covers sponge baths, tub baths and water temperature, so we will not repeat it here. After each bath, pat the belly button dry, including the little fold inside it.

When the cord falls off: what is normal

The stump often comes off during a nappy change or in the baby’s clothes. It is common to see:

• A few spots of blood on the nappy or vest
• A small amount of clear or slightly yellow, sticky discharge for a few days
• A raw-looking, pink spot in the centre that dries over a week or so
• A slight smell as the stump dries, which should not be strong or foul

Keep the area clean and dry until it has fully healed. Never pull the stump off, even if it is hanging by a thread, as this can cause bleeding and leave a raw area open to infection. If a stump has not come off after about three weeks, mention it to your paediatrician or polyclinic doctor; it is usually nothing, but occasionally delayed separation needs checking.

Signs of infection (omphalitis)

Infection of the cord stump, called omphalitis, is uncommon with good hygiene, but it can spread quickly in newborns, so it needs prompt medical attention. The table below helps you tell normal healing from warning signs.

Umbilical granuloma: the small pink lump

Sometimes, after the stump falls off, a small, soft, pink or red lump of tissue remains in the belly button. This is an umbilical granuloma. It often looks moist and may ooze a little clear or yellowish fluid, which can stain the nappy or vest.

Granulomas are common and not painful, as the tissue has no nerves. They do not usually go away quickly on their own, so show it to your paediatrician or polyclinic doctor. Treatment is simple and done in the clinic, often with a quick application of silver nitrate or another method your doctor chooses. Do not try home treatments without your doctor’s advice.

A belly button that keeps leaking clear fluid like urine, or anything that looks like stool, is different and needs to be checked, as it can rarely mean a connection to the bladder or bowel that did not close before birth.

Umbilical hernia: the belly button bulge

An umbilical hernia is a soft bulge at the belly button that gets bigger when your baby cries, strains or coughs and flattens when they are relaxed. It happens when the muscle ring around the belly button has not fully closed. It is common in babies, is usually painless, and most close on their own as the tummy muscles strengthen, often by the age of four or five.

Your doctor will check it at routine visits and may suggest seeing a paediatric surgeon if it is very large or has not closed by preschool age. Taping a coin over the belly button, or using a tight binder, is a traditional practice in some families, but it does not help the hernia close and can irritate the skin.

Seek urgent care if the bulge becomes hard, tender or discoloured, cannot be gently pushed back, or your baby is vomiting, in pain or has a swollen tummy. These can be signs the hernia is trapped, which is rare but an emergency.

The bottom line

Keep the cord stump clean and dry, fold the nappy below it, sponge bathe until it falls off, and let nature do the rest. A few drops of blood and a little sticky discharge are normal; spreading redness, pus, a foul smell, fever or a baby who is not feeding well are not. For more on the first weeks, see our newborn checklist, our newborn poop colour guide and the newborn care section. If feeding is a struggle for other reasons, our guide to tongue-tie and latching problems may help.