Patients with psychiatric disorders are prone to somatic disorders and often fail to actively reflect somatic discomfort. In a foreign study, a mental and physical health examination of 4803 community residents over the age of 55 found that 44.5% of psychiatric patients had a variety of physical illnesses. Another study showed that 50% of patients with schizophrenia had a variety of physical illnesses, and the mortality rate was twice as high as that of the general population. In Canada, a cross-sectional survey of 130,000 people in 2005 confirmed that the number of depressed patients with somatic disorders alone was already 21% higher than that of healthy controls. When depression is associated with physical illnesses such as chronic lung disease, heart disease and diabetes, the disability rate increases by 50%. Some studies have shown that a significant proportion of psychiatric patients have two or more physical illnesses and that the risk of disability increases as the number of physical illnesses increases. There is a wide variety of somatic diseases associated with psychiatric patients, and the conditions are complex. Somatic diseases in foreign studies mainly include: 1. cardiovascular system diseases (hypertension, hyperlipidemia, coronary heart disease and atherosclerosis, etc.); 2. metabolic and nutritional diseases (diabetes, obesity and hypokalemia, etc.); 3. digestive system diseases (upper gastrointestinal bleeding, cirrhosis, cholecystitis, gallstones, liver function abnormalities, etc.); 4. Respiratory system diseases (COPD, chronic bronchitis, emphysema, asthma and tuberculosis, etc.).