The urethra always feels numb may be urethritis, cystitis and prostatitis and other causes. 1. Urethritis: mainly including non-gonococcal urethritis and gonorrhea urethritis, usually due to bacterial and fungal infection of the urethra and triggered by the inflammatory response, the urethra may feel numb phenomenon. 2. Cystitis: most cystitis patients are also caused by bacterial infection, usually caused by Staphylococcus aureus, Streptococcus pyogenes and other pathogens, may also appear urethral numbness. 3. Prostatitis: may be due to trauma, urinary dysfunction or immune function abnormalities, etc., may also appear urethral numbness, accompanied by urination difficulties and other symptoms. Therefore, if the patient appeared urethral numbness symptoms, it is recommended to go to the hospital urology department in time for examination, to clarify the cause of the disease, for treatment.