Gastroenteritis (Paediatrics)

Low urgency
Common-

Inflammation of the internal layer of the intestine or mucosa caused by an infection.

It is commonly caused by a virus (norovirus, rotavirus, adenovirus and astrovirus) but it can also be bacterial or parasitic. It is contracted after consuming contaminated water or foods.

It manifests as nausea, vomiting, diarrhoea, abdominal pain, headache, general discomfort, fever and chills.

Diagnosis is obtained through questioning and a physical examination; it may be necessary to perform blood and stool tests to study the severity and the causal agent of the clinical picture.

Generally it is a disease which limits itself without any need for treatment. If necessary, symptomatic treatment should be performed and correct hydration ensured. Antiemetic drugs for vomiting can be also added.

Bibliographic references
  1. David O Matson. Acute viral gastroenteritis in children in resource-rich countries: Clinical features and diagnosis. UpToDate. Agosto 2016
  2. National Institute for Health and Care Excellence. Diarrhoea and vomiting in children: Diarrhoea and vomiting caused by gastroenteritis: diagnosis, assessment and management in children younger than 5 years.
  3. David O Matson. Acute viral gastroenteritis in children in resource-rich countries: Management and prevention. UpToDate. Abril 2016
  4. King CK, Glass R, Bresee JS, et al. Managing acute gastroenteritis among children: oral rehydration, maintenance, and nutritional therapy. MMWR Recomm Rep 2003; 52:1.
  5. Umesh D. Parashar. Gastroenteritis viral. Harrison. Principios de Medicina Interna, 19e. Capítulo 227
Author
Dr. Sara Vitoria
Copyright
© TeckelMedical 2026

Symptoms

    Watery diarrhoea


    Generalised abdominal pain


    Bouts of abdominal pain and diarrhoea


    Pain in the middle of the abdomen


    Diarrhoea

Symptoms to watch out for

Fever (temperature higher than 38 ºC)
Antibiotics use during the last 3 months
If in the diarrhoea there is snot, blood or pus.
Vomits that persist for more than 3 days.
10% weight loss in a week
If the symptomatology persists for more than a week.

Self-care

Washing your hands is an effective way to prevent the spread of infections.
Maintain hydration of 2L per day. Avoid soft drinks and fruit juices with high sugar content.
The first 3 days follow an astringent diet (eat pasta, rice, baked or boiled potatoes, chicken, skinless boiled turkey, white fish, eggs, yogurts) and then continue with your diet without restrictions.