 As WTOP's Ralph Fox reports, there are ways for men to improve these numbers. Dr. Ryan Stone is a urologist with UVA Health and says at least half of the cases are connected to the male, and high blood sugar is a big factor. Men who have risk factors, either pre-diabetic or diabetic, by seeing their primary care physician regularly, they can be screened for that with a simple blood test, hemoglobin A1C, and sometimes it's just a matter of changing diet.