When should a child be evaluated for diabetes insipidus?

Thirst,lots of urine: Diabetes insipidus is a disorder that impairs the body's ability to make concentrated urine. Common symptoms in childhood might include constant thirst and large amounts of urine. There is also often a family history of the disease that can prompt an evaluation by the child's pediatrician.

Excessive thirst: Although symptoms can overlap with other conditions, diabetes insipidud should be entertained if there is excessive thirst with frequent urination in the presence of high serum sodium and osmolarity concomitant with inappropriately diluted urine. Having family history for di, histiocytosis or recent head trauma can raise the index of suspicion even higher.