Iam 28yr old male.At the age of 25 I had UTI,penis used to burn like anything after masturbation.I have gone for lots of tests and everythig was normal.I never had sex.I have used many antibiotics like norflox,ciproflaxin.One urologist suggested for Semen culture and steptococci was found.Then it was sensitive for tetracycleine.I used for 1 week and everything was gone.

Now after 4 years iam facing the same problem.Agagin urologist suggested for Semen culture and Ecoli was found.It was sensitive to CEFTUM.I used it but the pain still exists.As long as i use the antibiotic it is fine.if i stop and masterbate then pain starts agagin.

urine tests show normal.had ultrasound scan of abdomen and prostarte was normal.iam currently usinng BACTRIUM.But the same problem exists.I dont have any other probs in body,neither fecer nor weakness.
What could be the root cause of the problem.is it prostatitis or some damage in urethra