 [ Symptoms ] why do i now have a lack of sensitivity in my penis it is not numb but takes a longer time to achieve orgasm  i do not have difficulty getting an erection i have plenty of energy throughout the day and t tests ok i have not taken medications for 4 6 months celebrex percocet tramadol effexor i currently take 2000iu of vitamin d daily vaginal intercourse works fine but oral sensation lack of is what seems unexplainable to me  over the last 2 5 years i have had a few cortizone injections in my shoulder and knee but no major injury to my back [ Disease ] this happens to a lot of guys with age what you want to use is a penis health creme called man1 man oil it contains the amino acid acetyl l carnitine which repairs nerve endings and restores penile sensitivity it is safe and works great google it and see for yourself hope this helps and good luck