Red flags — seek same-day medical review if:
- Redness spreads outward from the base of the cord onto the surrounding skin, rather than staying as a thin rim.
- There is swelling, a foul smell, or pus-like discharge from the stump or the base.
- The skin around the cord feels warm or hot to the touch, or the baby cries when the area is touched.
- The baby seems unwell in any other way — unusually sleepy, feeding poorly, or irritable — alongside cord changes.
If your baby has a fever, remember: fever of 38°C or more in a baby under 3 months is an emergency — do not give paracetamol and wait; seek urgent medical care.
Why the cord stump needs attention
After birth, the umbilical cord is clamped and cut, leaving a short stump attached to the baby's tummy. Over roughly the following one to three weeks, this stump dries out, shrinks, darkens, and eventually separates and falls away on its own, leaving a small healing area behind. This process is a normal part of the tissue drying and detaching, similar in principle to how a scab forms and drops off elsewhere on the skin, and it needs very little active intervention — mostly time, air, and cleanliness.
What normal looks like day to day
- The stump starts moist and yellowish or greenish, then dries and darkens toward brown, grey, or black as it shrinks — this darkening is a sign of normal drying, not infection.
- A small amount of clear or slightly blood-tinged discharge as the stump is close to falling off is common and expected.
- The area around the base of the cord may look slightly pink where new skin is forming underneath, which is different from the deeper, spreading redness described below.
- Once it separates, a small amount of moisture or pinkness at the belly button is common for a few more days while the area finishes healing.
Everyday care
- Keep the area clean and dry; plain water is generally enough for routine cleaning, and the stump does not need to be covered.
- Fold the front of the nappy down below the cord, or use nappies designed with a cut-out, so the stump is exposed to air rather than trapped against fabric.
- Sponge-bathe rather than fully submerge the baby in water until the stump has separated and the area is dry and healed, unless your midwife has advised otherwise.
- Let it fall off on its own — never pull or twist the stump, even when it looks like it is barely attached.
Reassurance and limits
A little redness confined to a thin rim right at the base of the cord, without swelling, without odour, and without the baby seeming unwell, is common while the area heals and is not automatically a sign of infection. What matters is the direction of change: healing areas settle and shrink over days; infected areas tend to spread, worsen, and come with other signs.
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Message us on WhatsAppClinical thresholds in this page were reviewed and signed off by Dr Didier Decamps on 17 August 2026. This is general information and does not replace an individual assessment by a qualified clinician.
Written with AI assistance. Reviewed, corrected and signed by Dr Didier Decamps, paediatrician.
Last reviewed: 17 August 2026