Culture gives positive report if there are notable count of bacteria .so it doesn't mean everytime bacteria type changes.
Chronic prostate symptoms on long run due to narrowing of urethra u will have urine stream narrowing, dribbling ,increased Frequency , forcible voiding of urine
So u need to keep an eye over all these things
Next Steps
Consult General surgeon first..after complete urine examination, culture of sample..if necessary antibiotic can be sufficient..if not then u Wil be refered to Urologist
Health Tips
Drink plenty of fluids,Citralka syrup 10ml in 1glaas water for burning micturition
Maintain personal hygiene..Avoid using public toilets..