The umbilical cord stump is one of the things that worries parents most in the first days, and one of the things that needs the least care. As a rule, it should be kept clean, dry and exposed to the air, and it falls off on its own between day 5 and day 20. The diaper is the practical part: it needs to sit below the belly button so it does not cover or rub it. This article explains daily care, how to fold or choose the diaper, what is normal to see and the signs that mean you should see your paediatrician.
What happens to the umbilical cord stump
Once cut, the cord dries, darkens (from white to brown and then black) and hardens until it comes away by itself. The process takes 10 to 14 days on average, with normal variations between 5 and 20. In the days after it falls off, it is common to see a small moist wound at the bottom of the belly button and one or two drops of blood or yellowish fluid; it heals within a few days. What is not normal is described further down.
Daily care: clean, dry and exposed to the air
- You do not need to apply anything. The current recommendation in Portugal and most European countries is "dry care": no alcohol, no antiseptics, no powders. Only if your paediatrician or nurse advises otherwise.
- Wash your hands before touching the area.
- If it gets dirty with wee or poo, clean it with warm water and a pad or cotton wool, and pat dry gently.
- Let it air. Fold the diaper below the belly button, use a loose bodysuit and leave it uncovered for a few minutes a day.
- At bath time, it can get wet, but dry it well afterwards; or choose sponge baths until it falls off.
- Do not pull it or try to help it fall off, even if it is "almost" ready.
The diaper and the belly button: how to keep them apart
The diaper should not cover the stump, for two reasons: friction and moisture (wee travels up the diaper). There are two solutions:
- Diapers with a belly button cut-out. Some newborn diapers have a lowered front or a U-shaped cut-out. In our shop, Dodot Sensitive has this lowered area in sizes 0 and 1. It is the most convenient option for the first two weeks.
- Fold the front outwards. With any diaper (Bambo Nature, Moomin Baby or another), fold the front outwards before fastening the tabs, so the edge sits 1 to 2 cm below the belly button. It works just as well and you do not need to buy a specific diaper.
In both cases, check that the diaper is not tight at the waist (two fingers of room) and that the leg barriers are turned outwards. Once the stump has fallen off and the wound has healed, the diaper can go back up. Choosing a diaper for this stage is covered in how to choose the best diaper for a newborn, and the choice between Size 0 and Size 1 in newborn size vs Size 1 diapers.
A sensitive belly button after it falls off
In the days after it falls off, the skin at the bottom of the belly button is thin and can become red from the friction of the diaper or clothing. Keep folding the diaper below the belly button for a few more days, use loose cotton bodysuits, clean with water only and dry well. If it stays moist or has a small pink lump that does not dry (umbilical granuloma), show it to your paediatrician: it is common and easily treated at an appointment.
What is normal and what is not
| Normal | See your paediatrician |
|---|---|
| Dark, dry, hard stump | Red, warm or swollen skin around it |
| A slight smell in the last days before it falls off | A strong, unpleasant smell, or pus |
| One or two drops of blood when it falls off | Bleeding that does not stop within a few minutes or keeps coming back |
| A moist wound that dries within 2 to 3 days | A wound that is still moist after a week, or a pink lump |
| Falling off between day 5 and day 20 | Not falling off by 3 to 4 weeks |
| A belly button that "pops out" a little when crying | A baby with a fever, listless or feeding poorly, whatever the belly button looks like |
Redness spreading out from the belly button, with warmth and swelling, may be an infection (omphalitis) and should be seen urgently. A belly button that "pops out" when your baby cries is almost always an umbilical hernia, which is very common and usually closes on its own by age 2 or 3; your paediatrician will monitor it at routine check-ups.
Frequently asked questions
When does the umbilical cord stump fall off?
On average between day 10 and day 14, with a normal range of 5 to 20 days.
Should I put alcohol on the belly button?
No, unless your paediatrician specifically tells you to. Dry care (clean, dry, exposed to the air) is the current recommendation.
Do I need a special diaper for the belly button?
No. A diaper with a cut-out is convenient, but folding the front of any diaper outwards solves the problem.
Can I give my baby a tub bath before the stump falls off?
Yes, as long as you dry the stump well afterwards. Many parents prefer sponge baths until it falls off; both options are accepted.
My baby's belly button bled a little. Is it serious?
One or two drops when it falls off or in the following days are normal. Bleeding that does not stop or keeps coming back should be checked.
Summary
Clean, dry and exposed to the air: no alcohol, no products, a diaper folded or with a cut-out below the belly button, and patience until it falls off between day 5 and day 20. Spreading redness, pus, a strong smell, persistent bleeding or fever are the signs to see your paediatrician. The rest of newborn hygiene is covered in newborn hygiene in the first days.
