This narrative review addresses male hypogonadism. Specifically, it focuses on its pathophysiology, clarifying the mechanisms underlying the condition. Furthermore, it discusses epidemiology, providing information on its prevalence in the population. The article also describes the clinical presentation, which includes the symptoms and signs by which hypogonadism manifests. An important part is also the diagnosis, which involves methods for recognizing the disease. Finally, the review also focuses on treatment options for male hypogonadism.