Question: what are the symptoms of nephrogenic diabetes insipidus?
Answer: The two main symptoms of NDI are chronic excessive thirst (polydipsia) and excessive urine production (polyuria). Excessive urination at night (nocturia) also occurs. Some infants may present with vomiting, retching, unexplained fevers, lethargy, and irritability. Constipation, diarrhea and poor feeding may also occur.