I think that men are more likely to delay the treatment of their frequent urination symptoms because they don't want to face the possible causes. But there is no reason to be ashamed or scared. If the cause is an STD like chlamydia or gonorrhea, the treatment is very easy. Antibiotics are enough to get rid of these infections.
If the issue is prostatitis (inflammation of the prostate), that is treatable as well. So there is no need to worry. The sooner one sees a doctor about it, the sooner the symptoms will go away. Male frequent urination is a very common problem and doctors are well informed about the causes and treatments.