Androgens have the effect of promoting the development of male reproductive organs, maintaining male secondary characteristics, maintaining libido, and promoting skeletal muscle development. In men, most of the androgens are produced by the testes. Androgens promote the development of male reproductive organs such as the testes, and also help to maintain male secondary sex characteristics such as the growth of beards, throat knots, armpit hair, and pubic hair. Androgens also have an effect on male sexual function and libido. In addition, androgens promote protein synthesis and contribute to skeletal muscle development. Lack of androgens in men before sexual maturity may lead to incomplete development of internal and external reproductive organs, and in the case of lack of androgens after sexual maturity, it may lead to inconspicuous male secondary sexual characteristics. Patients with androgen deficiency are advised to pay attention to rest and avoid exertion and staying up late. If there is a need to supplement androgens, it is recommended to go to the hospital for relevant examinations, and supplement under the advice and guidance of professional doctors.