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Wellington Children's Hospital

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Stomach Bugs

Gastroenteritis is a bowel infection causing loose watery bowel motions (diarrhoea).
This may also cause vomiting. It is common for the diarrhoea to last a few days or up to a week longer than the vomiting. Your child may only have either vomiting or diarrhoea, not necessarily both.

Because of the diarrhoea and vomiting your child may be losing a lot of fluids and body salts. This can cause dehydration. It is important that these fluids and body salts are replaced.


The main treatment is to keep your child drinking fluids. This replaces fluid lost from vomiting and diarrhoea.

This page was last updated at 1:15PM on October 2, 2017.