In most cases, neonatal Bartter syndrome happens during the twenty-fourth to thirtieth week of gestation with polyhydramnios or excessive amniotic fluid. Because of this, the infant will have condition known as polyuria or excessive urination and polydipsia or excessive consumption of fluids. If the infant does not receive requisite quantities of fluids, the complications could be life-threatening. Although these symptoms begin at the first two years after birth, they are most likely diagnosed only after the child is in schooling age.
- Growth failure - Rate of weight gain is much lower than that of other children of similar age and gender
- Low blood pressure
- Kidney stones
- Muscle cramping and weakness
- Higher urination frequency