why would a man have blood in his urine
Blood in the urine of either men or women can be caused by infections that involve the kidneys, the ureters, the bladder or trauma to the penis (in men).It can also be caused by kidney stones as they pass through the ureters. If urine is visible to the eye then it's called Gross Hematuria.onfidence votes 2.3K. Blood in the urine of either men or women can be caused by infections that involve the kidneys, the ureters, the bladder or trauma to the penis (in men). It can also be caused by kidney stones as they pass through the ureters.