Gonorrhoea and chlamydia infection usually present with burning micturition and discharge per urethra (purulent in gonorrhoea and mucoid or mucopurulent in chlamydia infection). Diagnosis is arrived at by Gram-stained smear examination of urethral swab and culture. Urine culture is not undertaken for the diagnosis of gonorrhoea or chlamydia.
Chlamydial infection may remain asymptomatic in females, but in males it expresses as urethritis, epididymo-orchitis, prostatitis, etc. Without these features, it is difficult to diagnose chlamydial infection in males.
For detailed consultation, consult a venereologist. Venereophobia may be the cause of doctors' hoping in some cases.