Endocrine diseases are a type of disease caused by abnormal function of the endocrine system, which involves the synthesis, secretion and action of hormones. Common endocrine diseases include diabetes, thyroid disease, pituitary gland dysfunction, parathyroid dysfunction, etc. These diseases may cause increased or decreased hormone levels in the body, affecting multiple organs and physiological processes. Diagnosis of endocrine disorders usually involves testing of hormone levels, and treatment includes medications, surgical intervention, and lifestyle management. Early diagnosis and treatment are critical to maintaining body homeostasis and patient quality of life.