Frequent urination in elderly men may be related to prostate hyperplasia, prostate cancer, urinary tract infection and so on. 1. Prostatic hyperplasia: the etiology of prostatic hyperplasia is not yet completely clear, it may be related to androgenic effects, imbalance between cell proliferation and apoptosis, growth factor neurotransmitter effects, prostatic mesenchymal gland epithelial interactions, inflammatory stimulation, etc. The disease is a common disease in middle-aged and elderly men. The disease is a common disease in middle-aged and elderly men, and glandular hyperplasia can easily lead to urinary tract obstruction, causing symptoms such as frequent urination, urinary urgency, and increased nocturia. 2. Prostate cancer: mainly caused by age, heredity, food, environment, obesity, sex hormone, etc. It can show hematuria, urinary urgency, slow urinary flow, urination effort, etc. Because the tumor tissues oppress the urethra to cause urinary obstruction, which can also lead to frequent urination in elderly men. 3. Urinary tract infection: Due to the infection of bacteria and other pathogens, coupled with the obstruction of urinary tract, poor hygiene habits and other factors can easily induce urinary tract infection. Pathogens, inflammatory secretions stimulate the urethral mucosa will appear urinary frequency, urinary urgency, urinary pain, dysuria and so on. Causes of frequent urination in elderly men are more reasons, it is recommended to go to the hospital in a timely manner to check, clarify the cause of the disease under the guidance of the doctor treatment.