Recognizing and treating infant dehydration

As a parent, you quickly learn to notice the little changes in your baby—whether it’s a different cry, a shift in feeding, or changes in their diapers. One important condition to watch for is dehydration. Babies can become dehydrated more quickly than adults, especially when they’re unwell, and recognizing the early signs can help you act fast to keep your little one safe.
Why Babies Are at Higher Risk
Infants are more vulnerable to dehydration because:
- Their bodies are made up of a higher percentage of water.
- They lose fluids more quickly through fever, diarrhea, or vomiting.
- They can’t communicate thirst the way older children can.
Common Causes of Dehydration in Infants
- Illnesses with vomiting or diarrhea.
- Fever, which increases fluid loss.
- Excessive sweating in hot weather.
- Poor feeding, whether due to illness, difficulty breastfeeding, or refusal to drink formula.
Signs of Dehydration to Watch For
Mild dehydration can progress quickly, so it’s important to look for changes in your baby’s appearance, behavior, and diapers.
Mild to Moderate Signs:
- Fewer wet nappies (less than 6 per day for newborns, fewer than usual for older babies).
- Dark yellow or strong-smelling urine.
- Dry mouth or lips.
- Sunken soft spot (fontanelle) on the head.
- Unusual fussiness or irritability.
- Tiredness or reduced activity.
Severe Signs (Seek Immediate Medical Help):
- No wet nappies for 8 hours or more.
- Very dry mouth and tongue.
- Sunken eyes.
- Cool hands and feet or mottled skin.
- Excessive sleepiness, weakness, or limpness.
- Rapid breathing or heart rate.
How to Treat Infant Dehydration
- Increase Fluids
- For breastfed babies: Offer breastfeeds more frequently.
- For formula-fed babies: Offer smaller, more frequent feeds.
- For babies over 6 months: An oral rehydration solution (ORS) may be recommended by a doctor.
- Manage the Cause
- If diarrhea or vomiting is present, continue feeding—don’t withhold fluids.
- Keep your baby cool if fever or hot weather is contributing.
- Monitor Closely
- Track wet nappies, feeds, and energy levels.
- Reassess frequently, as babies can worsen quickly.
- Seek Medical Care
- If you suspect moderate to severe dehydration, call your doctor right away.
- Infants under 6 months are at higher risk and should always be assessed promptly.
Preventing Dehydration
- Feed your baby regularly, even if they’re sick.
- In hot weather, offer extra breastfeeds or formula.
- Avoid giving plain water to babies under 6 months unless recommended by a doctor.
- Be especially watchful when your baby is unwell.
Supporting Parents Through the Worry
Watching for signs of dehydration can feel overwhelming, especially if your baby is unwell and refusing feeds. Remember: you don’t have to make these decisions alone. Trust your instincts—if something doesn’t feel right, seek medical advice. You know your baby best, and getting reassurance or guidance from a professional can give you the peace of mind you need.
Final Thought
Infant dehydration is serious but manageable when recognized early. By learning the signs, offering plenty of fluids, and knowing when to seek medical help, you can protect your baby’s health and help them recover more quickly. Each challenge you face builds your confidence as a parent—you are doing an incredible job keeping your baby safe and cared for.