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Diabetes Insipidus in Children

Polyuria and polydipsia syndrome in children due to vasopressin deficiency (central diabetes insipidus) or renal resistance (nephrogenic diabetes insipidus), with risks of severe dehydration, electrolyte imbalance, and growth failure.

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 Diabetes Insipidus in Children?

Central diabetes insipidus (CDI) is caused by deficient hypothalamic vasopressin secretion, with etiologies including hereditary AVP gene mutations, craniopharyngioma, germinoma, Langerhans cell histiocytosis, trauma, and post-pituitary surgery.

Nephrogenic diabetes insipidus (NDI) reflects renal tubular insensitivity to vasopressin, most commonly X-linked from AVPR2 mutations or autosomal recessive from AQP2 mutations.

Diagnosis combines plasma and urine osmolality, water deprivation testing, copeptin assessment, MRI of the hypothalamic-pituitary axis, and genetic testing as indicated.

Symptoms

Polyuria with dilute urine and persistent polydipsia
Nocturnal enuresis or new-onset bedwetting in older children
Failure to thrive, irritability, and recurrent dehydration in infants
Hypernatremia and seizures with unrecognized severe deprivation
Constipation, fever of unknown origin, and electrolyte derangement

Risk Factors

Family history of central or nephrogenic diabetes insipidus
Recent pituitary or hypothalamic surgery
Pituitary stalk thickening on MRI suggestive of infiltrative lesion
Lithium therapy and certain nephrotoxic medications
Sickle cell disease, severe hypokalemia, or chronic hypercalcemia in NDI

When to See a Doctor?

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

  • Persistent polyuria and polydipsia with dilute urine in any child
  • New polyuria after a brain injury, surgery, or central nervous system tumor
  • Failure to thrive with electrolyte abnormalities
  • Family history of diabetes insipidus and consanguineous parents

Treatment Methods

01
Free access to water and careful fluid balance monitoring in infants
02
Desmopressin (oral, sublingual, or intranasal) for central DI with serum sodium-guided dosing
03
Hydrochlorothiazide combined with potassium-sparing diuretic and low-sodium diet for nephrogenic DI
04
Treatment of underlying cause — surgical resection, chemotherapy, or radiotherapy for tumors
05
Long-term follow-up with growth, neurology, ophthalmology, and adherence support

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.