[Urological Diseases in Men and their Prevention].

The late-onset hypogonadism is defined as a reduction of blood testosterone values in aging males in combination with sexual symptoms. A hormone substitution is only necessary if desired by the patient. Erectile dysfunction is often caused by vasculopathy. Therefore, vascular risk factors should be evaluated. In case of cardiovascular disease a cardiologist should be addressed before initiating treatment. First line therapy consists of phosphodiesterase inhibitors. In lower urinary tract symptoms prostatic enlargement is the likely cause, but other causes have to be ruled out. Symptomatic therapy can be initiated if the patient is bothered. If voiding symptoms are predominant, alpha blockers or alpha reductase inhibitors are the treatment of choice. In case of storage symptoms, treatment can be started with muscarin receptor antagonists.