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Diarrhoea in Infants

Diarrhoea in infants is an important problem because of the risk of dehydration and requires careful monitoring with fluid and electrolyte support.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Çocuk Sağlığı ve Hastalıkları department. Book Appointment →

What is Diarrhoea in Infants?

Acute diarrhoea in infants is most often caused by rotavirus, adenovirus or norovirus infections that resolve spontaneously within 7–10 days. Bacterial diarrhoea (Salmonella, Campylobacter, E. coli) presents with bloody stools and high fever and may last longer.

Dehydration can develop rapidly, especially in infants under 6 months, and requires urgent intervention. Mild-to-moderate dehydration is treated with oral rehydration solution (ORS) and severe dehydration with intravenous fluids.

Breastfeeding should not be interrupted during diarrhoea; breast milk both prevents fluid loss and contains protective antibodies. In formula-fed infants, undiluted standard formula should be continued.

Symptoms

3 or more loose stools per day
Abdominal pain and gas
Nausea and vomiting
Fever (usually mild in viral gastroenteritis)
Bloody or mucous stools (suggest bacterial infection)
Signs of dehydration: reduced urine output, dry mouth, sunken fontanelle, sunken eyes

Risk Factors

Age between 6 months and 2 years (rotavirus mainly affects this age group)
Group care (nursery, daycare)
Inadequate hygiene
Immunosuppression
Not being breastfed
Lack of access to clean drinking water

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Any diarrhoea in an infant under 6 months
  • Bloody or black stools
  • No urine output for more than 8 hours (dehydration)
  • Fever above 38.5°C or lasting more than 48 hours
  • Infant not feeding, not arousable or very lethargic

Treatment Methods

01
Oral rehydration solution (ORS): 50–100 mL after each loose stool, in small sips
02
Continue breastfeeding: breast milk is the best source of fluids and nutrition
03
Continue feeding: starvation delays gut recovery
04
Zinc supplementation: 10 mg/day at 2–6 months, 20 mg/day above 6 months
05
Probiotic (Lactobacillus rhamnosus GG): may shorten duration of diarrhoea
06
Antibiotics in bacterial diarrhoea (according to culture and sensitivity)

Which Department to Visit?

You can visit our Çocuk Sağlığı ve Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Çocuk Sağlığı ve Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.