Hi welcome to the health care magic Your partner might have here acute urinary tract infection or acute urethritis.... Chlamydia and mycoplasma like non gonococcal urethritis also might be cause Work up needed with physical examination and urine examination along with urine culture... You should be given empirical antibiotic and than according to culture report specific drug given... USG will be useful to rule out stone, cystitis and kidney affection if present... Meanwhile fruit juice, more water given Excess spicy food avoided If any suspicious growth present (chance less) than cystoscopy needed for biopsy.. Take care Physician consultation advisable for examination and subsequent work up