Diarrhoea and Gastroenteritis

Also known as: Loose Motions, Stomach Flu, Food Poisoning

Category: DigestiveICD-10: A09

Acute gastroenteritis is an infection of the gut causing diarrhoea and vomiting. Dehydration is the main danger, especially in children.

Symptoms

  • Watery diarrhoea
  • Vomiting
  • Abdominal cramps
  • Fever

Causes

  • Viruses such as rotavirus
  • Bacteria
  • Contaminated food and water

Risk factors

  • Unsafe water
  • Poor hygiene

Complications

  • Dehydration

Treatment overview

ORS and zinc for children are the mainstay; continue feeding. Antibiotics only when a doctor advises.

Prevention

  • Rotavirus vaccine
  • Safe water
  • Hand washing

When to see a doctor

Urgently if there is blood in stool, no urine for 6+ hours, or the child is very drowsy.

Specialists who treat it

Frequently asked questions

What are the symptoms of Diarrhoea and Gastroenteritis?

Watery diarrhoea, Vomiting, Abdominal cramps, Fever

What causes Diarrhoea and Gastroenteritis?

Viruses such as rotavirus, Bacteria, Contaminated food and water

How is Diarrhoea and Gastroenteritis treated?

ORS and zinc for children are the mainstay; continue feeding. Antibiotics only when a doctor advises.

How can Diarrhoea and Gastroenteritis be prevented?

Rotavirus vaccine, Safe water, Hand washing

Medically reviewed by

Medical review pending

Last updated

9 October 2026

Sources

  • World Health Organization fact sheets
  • ICMR and MoHFW national guidelines
  • National Centre for Disease Control (NCDC)

This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.

This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.