Many people are not sure what the endocrinology department is looking for, so here is a general explanation. 1.Diabetes mellitus. This is the most common disease of endocrine; 2. Thyroid disease. This includes all diseases related to the function and form of the thyroid gland. Such as: hyperthyroidism, hypothyroidism, thyroid nodules, goiter, etc.; 3, bone metabolic diseases. The most common is osteoporosis, but also includes other unidentified original bone pain, deformity; some diseases are more insidious, may be the main symptoms of hearing fading, headache, etc.; 4, reproductive system. Female menstrual irregularities, ovulation disorders, male/female menopausal state, male breast development, secondary sexual characteristics dysplasia, pseudohermaphroditism, infertility / fertility, etc.; 5, obesity. Obesity is not only ‘unattractive’, but also a disease, a serious health threat that must be addressed and intervened; 6. Pituitary diseases. Diverse manifestations, such as abnormally high height, oversized hands and feet, oily skin, visual field defects, etc.; all those who have undergone head and neck radiation therapy must have endocrine follow-up and be alert to radiation damage to the gland; 7, adrenal gland disease. Abnormal obesity, refractory hypertension, abnormal genital development, etc. may be adrenal gland diseases; 8. abnormal disorders of electrolytes. Severe low potassium, low sodium, low/high calcium, unexplained recurrent stones, etc.; 9, poor growth and development of children. Anyone who has undergone endocrine gland surgery, such as thyroid and adrenal gland removal, needs long-term endocrine follow-up and monitoring of hormone levels.