Respected sir/madam i had NT scan and double marker test... In that scan nt scan is normal and double marker has shown low risk... After that I had anamoly scan ...in that scan..every thing is normal but in KUB right renal pelvis is 7.4mm and left renal pelvis is 7.5mm... After 4weeks of follow up growth scan.. Evry thing is normal except Kub again it's shown bilateral pelviectasia Right ranel pelvis 8mm left renal pelvis is 9mm.. This time has increased... Liquor is 23cms My questions are... 1.Does it leads to any chromosomal abnormalities like down or trisomy ? 2.Is this common to all babies? 3.If the renal pelvis continues to grow like this how baby will survive? 4.Baby is urinating ?are kidneys are functioning well? 5.what if persists after birth? 6.I have mild hydronephrosis in my left kidney...is this genetically passed to my baby? 7.how much size will it reach at 34 36 weeks of pregnancy Note: baby is active ...it's kicking well ...my current gestational age is 25weeks 4 days