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Gastroenteritis in children, aka stomach flu

Vaccines | Allergies | Obesity | Mental Health | Nutrition | Pediatricians

Gastroenteritis in children, often referred to as the stomach flu, is a common gastrointestinal illness that causes inflammation of the stomach and intestines. It is typically characterized by symptoms such as diarrhea, vomiting, abdominal pain, and fever. Gastroenteritis can be caused by various viruses, bacteria, or parasites, and it is a highly contagious condition. Here are key points to understand about gastroenteritis in children:


  • Viral Gastroenteritis: The most common cause of gastroenteritis in children is viral infections. Rotavirus and norovirus are two of the most common viruses responsible for this condition.
  • Bacterial Gastroenteritis: Bacterial infections can also cause gastroenteritis. Common bacterial culprits include Salmonella, Escherichia coli (E. coli), and Campylobacter.
  • Parasitic Gastroenteritis: Less commonly, parasites like Giardia and Cryptosporidium can lead to gastroenteritis.


  • Gastroenteritis typically presents with the following symptoms in children:
    • Diarrhea: Often watery and frequent.
    • Vomiting: May be frequent and forceful.
    • Abdominal pain and cramps.
    • Fever.
    • Nausea.
    • Loss of appetite.
    • Dehydration: Especially if the child is unable to keep fluids down.


  • Gastroenteritis is usually diagnosed based on the child’s symptoms and a physical examination by a healthcare provider.
  • In some cases, stool tests may be performed to identify the specific pathogen responsible for the infection.


  • Treatment of gastroenteritis in children primarily focuses on managing symptoms and preventing dehydration. It may include:
    • Fluid replacement: Encouraging the child to drink clear fluids (e.g., oral rehydration solutions, diluted fruit juices, clear broths) to stay hydrated.
    • Continued breastfeeding or formula feeding for infants.
    • Rest and a temporary reduction in solid foods.
    • Avoiding dairy products during acute illness, as they may worsen diarrhea in some children.
  • Antibiotics are typically not used for viral gastroenteritis, but they may be prescribed for certain bacterial causes.
  • If dehydration is severe, hospitalization may be necessary for intravenous (IV) fluid administration.


  • Practicing good hygiene, such as frequent handwashing, can help prevent the spread of gastroenteritis.
  • Rotavirus vaccination is recommended for infants as part of routine childhood immunizations and can prevent severe cases of viral gastroenteritis.
  • Avoiding contaminated food and water sources can reduce the risk of bacterial or parasitic gastroenteritis.

When to Seek Medical Attention:

  • It’s important to contact a healthcare provider if a child with gastroenteritis experiences severe symptoms, signs of dehydration (e.g., dry mouth, sunken eyes, decreased urine output), blood in the stool, or if symptoms persist or worsen.


  • Most cases of gastroenteritis in children resolve within a few days with appropriate home care and fluid replacement.
  • As the child recovers, reintroduce a normal diet gradually, starting with bland foods and progressing to their usual diet.

Gastroenteritis in children is typically a self-limiting condition, but it can be more serious in infants, young children, or those with weakened immune systems. Prompt attention to symptoms, ensuring adequate hydration, and seeking medical care when necessary are essential for a child’s recovery from gastroenteritis.

The content is provided for informational purposes only and is not intended as medical advice or as a substitute for medical advice of a physician