My Son 8 Years old went surgery two weeks ago. Septoplasty and Adenoid removal. Surgery took 1hr and 20 min. He was under general anaesthesia. He stayed one night in hospital. Next day he was release from hospital and give antibiotic for 5days. After 2 days we noted that he go to toilet for urine frequently. He is drinking lots of water so we thought it due to excess intake fluid or antibiotic. It is 3rd week and still he frequently urinate, may be once in an hour. I took UTI test and sugar test which are negative. I try to research on google and i found that may be it is cause by general anaesthesia . is he nerugenic bladder or what? is this is the side effect of anaesthesia. He recover well from spetoplasty. no bleeding from nose. He has absorbable packing in his nose. He is very active. He start going school but i inform teacher let him pass urinate after 1hr. Is this condition stay for ever or there are some treatment.