In daily life, women experience irregular menstruation, abnormal bleeding from the reproductive tract, amenorrhea and reproductive tumors, men experience impotence, abnormal semen and hormone-related tumors, as well as facial acne that cannot be gotten rid of by various methods, all of which may be caused by sex hormones. Definition of sex hormones: Sex hormones are steroid hormones synthesized by the gonads, placenta and adrenal cortex reticular zone and other tissues in animals. In humans, they are mainly hormones secreted by the ovaries or testes such as estrogen, androgens, progesterone and follicle-stimulating hormone, luteinizing hormone and lactogen, etc. secreted by the pituitary gland. The main roles of sex hormones: (1) Promote the development of reproductive organs and maintain their maturity. Androgens can promote the development and maturation of male sex organs; estrogen can promote the development of female uterus, fallopian tubes, ovaries, vulva and other organs, and can regulate menstrual cycle and fertility. (2) Promotes secondary sexual characteristics, such as beard in men and breast in women. Testosterone can promote protein synthesis, make male muscles develop and throat knot become bigger; estrogen promotes breast development, etc. (3) Maintaining sexual function. Sex hormones can cause central excitement and produce sexual impulses. For example, lack of testosterone in men and estrogen in women can lead to sexual dysfunction. (4) Promote pregnancy and fertility: It is because human sex hormones can harmoniously regulate all human organs and tissues that human beings can reproduce normally, and abnormal reproductive endocrine is one of the main causes of infertility. (5) Promote human metabolism: androgens promote protein synthesis, while estrogens change the distribution of body fat and promote the sinking of bone calcium and epiphyseal closure. Sex hormones are hormones necessary for maintaining normal physiological activities of the human body and are related to all aspects of the human physiological environment. If abnormalities occur, we should seek timely medical consultation and scientific diagnosis and treatment, and do not use private medication.