Urinary tract infection, trichomoniasis, prostatitis and chlamydia all cause burning after urination, according to Healthline. Pain after urination may also occur as a complication of prostate cancer.
Bacteria cause UTIs, which can occur in any part of the urinary tract and result in pain after urination, reports Healthline. Trichomonas vaginalis is a type of parasite that causes the sexually transmitted disease trichomoniasis. Along with burning after urination, symptoms of trichomoniasis include discharge and itching. The condition affects both women and men. An inflamed prostate causes prostatitis, which can also lead to bladder infections. Chlamydia, a sexually transmitted disease, often causes discharge, lower abdominal pain and pain after sex.