<s>[INST] my baby boy,5 months old bone with posterir urethral valve and surgery done on 14 june.still under follow up.what r the risk facters that i should worry about... will my baby go for renal trasplant. we r living in doha.please give me some advice [/INST] Hi, The most common delayed complication is restenosis during followup, although only some develops that. You need not worry about transplantation now-he had undergone surgery without delay, relieving obstruction and hence allowing kidneys to function normally. Just keep him under regular followup to detect any stenosis without delay. Also report to doctor if he develops fever & crying on micturition, suggesting urine infection that needs early treatment with antibiotics. Hope I have answered your question. Let me know if I can assist you further.  </s>