An overactive bladder is a common cause of frequent urination in men, reports Healthline. Patients with overactive bladders sometimes cannot stop the need to urinate immediately, and they experience leakage during moments of uncontrollable urge to urinate. Leakage also sometimes occurs when performing physical activity. Other potential causes of frequent urination include urinary tract infections, diabetes, interstitial cystitis and use of diuretics, according to WebMD.
An enlarged prostate causes an overactive bladder in most men, states Healthline. The prostate, which is only present in men, tends to grow bigger as men become older. Obstruction of urine flow may occur when the prostate enlarges, leading to symptoms such as frequent urination.
Frequent urination typically indicates a urinary tract infection if it occurs with fever and abdominal pain, notes WebMD. Diabetic patients also urinate frequently and produce too much urine, as their bodies respond to the presence of unused glucose by eliminating it through the urine. Frequent urination, accompanied by pain in the pelvic and bladder areas, may signal interstitial cystitis.
Frequent urination is a common effect of taking diuretics, as these medications prompt the body to get rid of extra fluid through the urine, explains WebMD. Stroke sufferers and patients with neurological conditions experience frequent urination resulting from damage to nerves connected to the bladder. Radiation therapy, bladder dysfunction and bladder cancer are rare causes of frequent urination.