Gastroenteritis (Pediatrics - PEDS)

Low urgency
Common-

It is an inflammation of the inner layer or mucosa of the intestine caused by an infection.

It is usually caused by a virus (norovirus, rotavirus, adenovirus and astrovirus) although it can be bacterial or parasitic. The germs are contracted after ingesting contaminated food or water.

It manifests with nausea and vomiting, diarrhea, abdominal pain, headache, malaise, fever and chills. 

Diagnosis is made by questioning and physical examination; blood and stool tests may be necessary to study the severity and causative agent of the clinical picture.

It is usually a self-limiting disease with no need for treatment. If necessary, symptomatic treatment should be carried out and proper hydration should be ensured. Antiemetics may be added for vomiting.

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 diarrhea


    Generalised abdominal pain


    Bouts of abdominal pain and diarrhea


    Pain in the middle of the abdomen


    Diarrhea

Symptoms to watch out for

Fever (temperature higher than 100.4 ºF)
Antibiotic use in the last 3 months
If mucus, blood or pus appears in the diarrhea.
Vomiting that persists for more than 3 days.
10% weight loss in one week
If the symptomatology persists for more than one week.

Self-care

Washing your hands is an effective way to prevent infections from spreading.
Maintain hydration of half a gallon 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 potato, chicken, boiled skinless turkey, white fish, egg, yogurt) and then continue with an unrestricted diet.