Endocrine disorders in humans may cause hormonal disorders. For women, it may lead to irregular menstruation, low menstrual flow and amenorrhea, which may be caused by diseases such as polycystic ovary syndrome, or it may be caused by irregularities in personal life and diet. For men, hormonal disorders may cause poor sperm activity, low sperm count, testicular atrophy, etc. Men who smoke, drink alcohol and stay up late for a long time may have hormonal disorders. Hormone disorders may cause facial acne and obesity in both men and women. If sex hormones are disordered, it may affect the development of human reproductive organs and may cause infertility.