Educational Guidance: This child dehydration checker is designed as an educational screening resource. It does not provide medical diagnoses, treatment decisions, or dosage prescriptions. Always review results with a physician or healthcare professional.

Child Dehydration Checker

Enter the required values below to run the educational estimation.

Child's Age Group

Urine Output

Dry mouth, sticky tongue, or cracked lips Dry mouth, sticky tongue, or cracked lips

No tears or very few tears when crying No tears or very few tears when crying

Severe lethargy, extreme sleepiness, or weak cry Severe lethargy, extreme sleepiness, or weak cry

Sunken eyes or sunken soft spot (fontanelle) in infants Sunken eyes or sunken soft spot (fontanelle) in infants

Ongoing active vomiting or heavy watery diarrhea Ongoing active vomiting or heavy watery diarrhea

Why Children Are Prone to Dehydration

Children have a higher surface-area-to-body-mass ratio than adults, meaning they lose fluids rapidly. When sick with vomiting, diarrhea, or fever, their fluid output can quickly exceed intake, causing dehydration.

Mild, Moderate, and Severe Dehydration

Mild dehydration causes mild thirst and dry lips. Moderate dehydration is marked by decreased urination, lack of tears, and mild lethargy. Severe dehydration presents as extreme lethargy, sunken eyes, rapid heart rate, and cool extremities.

Pediatric Rehydration Protocol

For mild-to-moderate dehydration, use oral rehydration solutions (ORS) containing balanced water, salts, and sugars. Give small amounts (e.g. 1 teaspoon) every 5 minutes to prevent triggering vomiting, gradually increasing volumes.

When to Seek Urgent Medical Attention

Child is unresponsive, extremely floppy, or difficult to wake up (severe lethargy).
No urine output or wet diapers for more than 8 hours.
Cool, pale, or mottled hands and feet accompanied by rapid breathing.

Frequently Asked Questions

Check for wet diapers (at least 6 daily), tear production when crying, moist mouth membranes, and general energy levels.

Give small, frequent sips of an oral rehydration solution (ORS) like Pedialyte. Avoid large amounts of plain water, soda, or juices, which can worsen diarrhea.