Being sick

A problem likely to get better on its own

It is common for babies to be sick - this is often in the early weeks as they get used to feeding and as their bodies develop. You can tell when your baby is vomiting, rather than just bringing up small amounts of milk, because there will be a lot more coming out. It can be frightening for your baby, so they are likely to cry. Lots of things can cause your baby to be sick.

Being sick often or lots of it, may be due to ‘gastric reflux’ where acid from the tummy can come up again. Babies can be grumpy and it can sometimes lead to poor feeding. If your baby is feeding well but doesn't seem themselves, you may just need to change the baby's position during a feed to make them more upright. Feeding smaller amounts and more often may also help.

Health Visitor says

After the first few months, if your baby is suddenly sick it is more likely to be caused by a stomach virus rather than possetting. Gastroenteritis is a tummy bug (see Upset tummy), which can come with diarrhoea (runny poo).

This is more serious in babies than older children because babies easily lose too much fluid from their bodies and become dehydrated. If they become dehydrated they may wee less, lose their appetite and have cold hands and feet.

Get expert advice. If your baby is unwell, or if vomiting has lasted more than a day, get your Practice Nurse or GP’s advice straightaway.

Possetting is when a baby brings up small amounts of milk. This is very common in the first few weeks and may be nothing to worry about. If you are worried get advice.


I have a new baby. I have just given my baby a feed.


They always seem to bring up small amounts of milk.


This is known as ‘possetting’. As they develop it will stop naturally. Talk to your Health Visitor.

The above information cannot replace specialist treatment. If you are worried call NHS 111 or your Health Visitor.

Download Word document