Conversation: The conversation between human and AI assistant.
[|Human|] Hi I had my 19 week scan and they have found what is called a prominent bilateral feotal renal plevis on both side measuring some 3mm, I ve done alot of reading and usually a dilation over 4mm is renal pelvis I m having trouble understanding this and what it means for my baby thank you
[|AI|]  Hello, and I hope I can help you today. The renal pelvis is the part of the kidney where urine pools before it is sent (via small tubes called the ureters) to the bladder for urination.  The baby does normally urinate inside you when the baby is healthy. Prominent renal pelvis can indicate slow flow of the ureters to the bladder, or narrowing of the urethra (the tube that leads out of the bladder).  It can also be normal and can go away over time. So normally, if found at 19 weeks, you would be followed by ultrasound about every month to check the kidneys.  If the renal pelvises still look prominent when the baby is full term, the pediatrician will need to evaluate the baby after birth to make sure it can urinate properly. But again, most cases like this scene at the anatomy ultrasound go away by the end of pregnancy. Either way, the condition does not affect the pregnancy and delivery at all. I hope I was able to adequately answer your question today and that this information is reassuring to you.  Best wishes,