###Human: What is the reason for pain while passing urine? ###Assistant: Hi. I have gone through your case and can well understand your genuine health concern. 1. Urinary tract infection. 2. Calculus in bladder or urethra. 3. Any local pathology in urethra. 1. Complete blood count. 2. Urine routine examination. 3. Ultrasound of abdomen and pelvis. Revert back for follow up along with the investigation reports to an internal medicine physician online.--->