The umbilical cord stump — that little clamped knot left after birth — is one of the first things that makes new parents nervous. The reassuring truth: it needs almost nothing from you. The entire job is to keep it clean and dry and leave it alone, and it dries up and drops off on its own, usually within the first one to three weeks.

What the stump is now

For nine months the cord was your baby’s lifeline. Now it’s a small remnant that’s simply drying out and detaching. Over the first days it shrivels and changes colour — yellowish, then brown, then almost black — until it loosens and falls away on its own, often around day five to fifteen.

Let it happen in its own time. Don’t pull it off, even when it’s hanging on by a thread — tugging early can cause bleeding. The less you interfere, the better it heals.

Keep it clean and dry — the whole method

That really is the whole method. In practice:

What’s normal as it heals

A healing cord can look a little alarming and still be completely fine. Expect some of this:

Normal as it healsCall your midwife or doctor
A few drops of dried blood, or spotting on the nappy or vestBleeding that won’t stop, or more than a few spots
A slightly sticky or clear ooze at the base for a few daysPus, or cloudy, smelly discharge
A faint smell, and a shrivelled, gnarly lookSpreading redness, warmth, or swelling around the base
It comes off any time in the first ~3 weeksStill firmly attached after 3–4 weeks

After it drops off, you might see a small moist red or pink lump at the navel that weeps a little — often a harmless umbilical granuloma, which a midwife or doctor can treat easily. It’s worth showing them, but it’s not an emergency.

When to call your midwife or doctor

The one thing to take seriously is infection. A small rim of pink at the very base can be normal, but contact your midwife, health visitor, or doctor the same day if you see:

A cord infection in a newborn (omphalitis) is uncommon, but it can progress quickly, so it’s always worth a prompt call rather than a wait-and-see.

The short version

Almost every cord stump is entirely uneventful. Keep it dry, keep it out of the nappy, leave it alone, and watch for the handful of red flags above. Like so much of the first weeks — knowing whether your baby is getting enough or reading what their nappy colours mean — it comes down to one short checklist and the calm of knowing what’s normal. Then the stump drops off, the navel heals, and you’ll barely remember worrying about it.

This is general information, not medical advice. Cord-care guidance varies by country and setting — follow the advice of your own midwife or health service, and ask the people who know your baby.