What Causes Red Small Sore Area At The Opening Of Urethra?

Yes, please. I am a sngle 59 year old male, and not sexually active for several years. I have noticed in the last year or so, a red small soreish area at the edge of my pee hole. Its at the edge of the down drip area of the slit area. Not sore at all but just noticeable. Is it because of masterbation through the years.