The possible causes of stinging pain during urination: 1, acute urethritis, when inflammation occurs, the mucosa of the urethra can show congestion, edema and microscopic damage to the mucosal surface, then urine stimulation, local congestion and edema of the damaged parts will appear obvious stinging pain, pain increased during urination, pain can be relieved after urination. 2, when the presence of stones in the urethra can also appear the symptoms of stinging pain during urination, often seen in kidney stones, ureteral stones and bladder stones, After lithotripsy or extracorporeal shock wave lithotripsy treatment, the size of the stone decreases and it enters the urethra and stays in a relatively narrow position in the urethra, which can cause irritating pain, accompanied by difficulty in urination, dyspareunia or blood dripping from the urethra. 3. This is often seen in patients with various inflammatory urethral strictures, or after various surgeries or indwelling catheters, who may experience short-term stabbing pain.