There are many reasons for the stinging pain of urinating penis, such as urethritis, prepuce glans, urinary stones, prostate diseases, tumors and other reasons. 1. Urethritis: Inflammatory reaction of the urethra infection will cause congestion and swelling of the urethra, which will lead to painful urination. 2. Infection of the foreskin and glans: Infection of the foreskin and glans will cause congestion and edema of the glans urethra, which may cause the symptom of stabbing pain in the urinating penis. 3. Urinary stones: ureteral stones, kidney stones and other diseases, there may be smaller stones discharge process, stuck in the penis urethra, can also lead to urination penis sting. 4. Prostate disease: prostatitis, prostate hyperplasia and other diseases, pressure on the bladder, the urethra may also lead to urination penis sting. 5. Tumors: benign tumors of the urethra, bladder, prostate and other urinary system, malignant tumors and other diseases, can also cause stabbing pain in urination penis. There may be other causes of painful urination, it is recommended to go to the hospital in time to check, clarify the cause of the disease, and actively treat.