Gastroenteritis (stomach flu)

Gastroenteritis is inflammation of the gut, usually from infection, causing diarrhoea, vomiting and cramps. Most cases settle in a few days; the priority is preventing dehydration with oral rehydration fluids.

Symptoms

  • Diarrhoea
  • Vomiting
  • Stomach cramps
  • Mild fever
  • Signs of dehydration (thirst, low urine, weakness)

When to see a doctor

  • Signs of dehydration
  • Blood in stool or high fever
  • Vomiting that prevents keeping fluids down
  • Diarrhoea lasting more than a few days

FAQs

What's the most important treatment for diarrhoea?

Staying hydrated. Oral rehydration solution replaces lost fluids and salts and prevents dehydration, which is the main danger.