What is a slight pain when relieving urination?

Solution urine when there is pain, more common cause is urinary tract infection, may also be urethritis, cystitis, pyelonephritis, ureteral stones, kidney stones or bladder stones, also do not rule out may be urinary system tumors. Need to do urine routine, urethral exploration, cystoscopy, x-ray, ct and other examinations to /confirm/i.