Your baby’s kidneys are showing mild–moderate hydronephrosis (right 8.4 mm, left 6.9 mm), most likely due to PUJ obstruction. This is a common finding and usually improves on its own.
Nothing needs to be done right now. We will repeat the ultrasound at 28 weeks and again around 32 weeks to monitor it.
Your amniotic fluid and baby’s growth are important, and if those stay normal, there is no risk to the baby during pregnancy.
After birth, the baby will get a
kidney ultrasound to check again, and most babies do not need surgery.