If there is pain like pins and needles in urination, then the possible causes are: 1. Acute infection of the urinary tract, acute congestion and edema of the mucosal epithelium of the urinary tract with erosion after infection, which makes the urine flow through the mucosa of the relevant lesion can produce a pins and needles sensation. This can be accompanied by frequent urination, urinary urgency, painful urination or pain in the small abdomen, fever, lumbago, etc. It is recommended that routine urine tests and urine culture tests be performed to further rule out the presence of infection. 2. Stones in the urethra can cause pain when urinating or persistent stabbing pain in the urethra. Most patients may also have symptoms such as bleeding during urination or blood dripping from the urethra. The presence of stones needs to be clarified by ultrasound and urethroscopy of the urinary system.3. Tumors of the urinary tract can cause local mucosal rupture and persistent stinging pain, accompanied by symptoms such as bleeding from the urethral opening or hematuria of the naked eye.