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You can probably go on for a few more months before this episode of utinary retention happens again. You definitely need to have a surgery such as a TURP to relieve the prostate obstruction. You can be damaging the bladder and kidneys by delaying the surgery. You can be taught to catheterizd yourself in the meantime and this would likely have to be prescribed by your urologist. Hope this helps and let me know for you have questions.