Between 25 and 40% of individuals with Turner syndrome are born with a condition affecting their kidneys (the organs responsible for filtering blood and forming urine). In some, the kidneys have an unusual shape (horseshoe) or are in an unusual position. In others, the internal structure of the kidneys is affected. A double urine collecting system is most common.
These conditions may not have any effect on the girl’s health, but they might increase her risk of urinary tract infections, high blood pressure, or other kidney problems.
For this reason, all girls with TS should have an ultrasound exam of their kidneys soon after they are diagnosed. If any unusual findings are present, they should be assessed and treated (if needed) by a pediatric nephrologist (children’s kidney specialist).