Few things make a parent’s heart sink quite like the sound of a child being sick in the night. Childhood vomiting is one of the most common reasons parents worry, and while it is unpleasant for everyone, it is usually your child’s body doing its job of clearing out something that does not belong. This guide offers general information to help you stay calm and know what to look out for. It is not medical advice, and if you are ever unsure about your own child, please speak to your GP, a polyclinic doctor, or your paediatrician.
Why children vomit
Vomiting is a symptom, not an illness in itself, and it can have many causes. The most common by far is a tummy bug, often a viral gastroenteritis, which frequently comes with diarrhoea. Our guide to managing diarrhoea and stomach bugs in children is a helpful companion when both show up together.
Other common reasons a child might vomit include:
- Eating too much, too fast, or something that did not agree with them
- Coughing hard, or a cold with a lot of mucus
- Feeling anxious, travel sick, or overexcited
- Fevers and other infections, which can unsettle the stomach
Most of the time, vomiting from a simple tummy bug settles within a day or so, and children start to perk up as it passes. Your main job in the meantime is to keep them comfortable and, most importantly, hydrated.
Keeping your child hydrated
The biggest risk with vomiting is not the vomiting itself but the fluid your child loses, which can lead to dehydration. This is especially true in Singapore’s hot, humid weather, where children lose fluids easily. Small and steady is the golden rule.
Rather than offering a big drink that may come straight back up, try giving small sips very frequently. A teaspoon or a small mouthful every few minutes is often better tolerated than a full cup at once.
- Offer small, frequent sips of water or an oral rehydration solution from the pharmacy
- Wait a short while after a vomit before offering fluids again, then start slow
- For breastfed babies, continue breastfeeding in shorter, more frequent feeds
- Avoid very sugary drinks and fizzy drinks, which can make things worse
- Do not force food. Let your child’s appetite return in its own time, then start with plain, easy foods
A pharmacist can advise on suitable oral rehydration solutions and how to use them for your child’s age. Our guide to recognising and treating dehydration in children goes into more detail on keeping fluids up safely.
Dehydration red flags to watch for
Because dehydration is the main concern, it helps to know the warning signs. Contact a doctor if you notice signs that your child is becoming dehydrated, such as:
- Far fewer wet nappies, or not passing urine for many hours
- A dry mouth and lips, no tears when crying, or sunken eyes
- Unusual drowsiness, floppiness, or being very hard to rouse
- Being much less responsive or irritable than usual
- In babies, a sunken soft spot on the top of the head
Young babies and children can become dehydrated more quickly than older children and adults, so the younger your child, the sooner you should seek advice if they are not keeping fluids down.
When to see a doctor
Trust your instincts. You know your child best, and if something feels wrong, it is always reasonable to get them checked. See a GP, visit a polyclinic, or arrange to see your paediatrician if:
- Vomiting continues for more than a day, or keeps coming back
- Your child cannot keep down even small sips of fluid
- There are signs of dehydration as described above
- Your child has a high fever, or seems unwell beyond the vomiting
- Your child has a tummy bug and is not improving as you would expect
If you are unsure whether to head to the clinic or the hospital, our guide on when to take your child to A&E versus the GP can help you weigh it up.
Signs that need urgent care
Some symptoms alongside vomiting need prompt attention. Take your child to A&E, or call 995 for an ambulance if they are seriously unwell, if you notice:
- Green or bright yellow vomit, or vomit that looks like it contains blood
- Severe, constant tummy pain, or a tummy that is swollen and tender
- Vomiting after a head injury, or with a severe headache or a stiff neck
- A rash that does not fade when pressed, a seizure, or unusual confusion or extreme drowsiness
- Signs of serious dehydration, or a baby under a few months old who keeps vomiting
- Any concern that your child has swallowed something they should not have
When in doubt, it is always better to be cautious and have your child seen. No doctor will mind you checking.
Caring for your child as they recover
Once the worst has passed, ease back gently. Keep offering fluids, let appetite guide when food returns, and start with plain, bland options before richer meals. Rest, comfort, and plenty of cuddles all help. Wash hands well and clean up carefully, since tummy bugs spread easily at home, in childcare, and in school. For more on nursing a poorly child through the recovery days, see our guide to caring for a sick child at home.
The bottom line
Childhood vomiting is common, usually short-lived, and most often nothing more than a passing tummy bug. Your calm presence, small frequent sips, and a watchful eye on hydration are the heart of good home care. Learn the red flags, trust your gut, and never hesitate to seek help when your child seems unwell or you are worried. Every child is different, and reaching out to a professional when you are unsure is always the right call.