男科是研究男性生殖系統和其他與男性性別有關的健康問題。男科涉及所有物種男性生殖系統(性腺、內分泌和附屬器官)的基本和臨床方面，包括診斷和治療與性發育、不育、性功能障礙、性激素作用和其他泌尿系統問題有關的醫學問題。在醫學上，男科作為一個專業是最近的發展，因為它曾被認為是泌尿學或內分泌學的一個分支。

Andrology is the study of the male reproductive system and other male gender related health issues. Andrology deals with basic and clinical aspects of the male reproductive system (gonads, endocrine and accessory organs) in all species, including the diagnosis and treatment of medical problems associated with sexual development, infertility, sexual dysfunction, sex hormone action and other urological problems. In medicine, Andrology as a specialty is a recent development, as it had previously been considered a subspecialty of urology or endocrinology.