Insomnia is a subjective experience of insomniacs who are dissatisfied with the quality of sleep, sleep time and sleep efficiency. Insomnia is mainly manifested as difficulty in falling asleep, difficulty in waking up and falling asleep again at night, difficulty in maintaining sleep time, etc. It is the most common sleep disorder, at the same time, it also depends on those other uncomfortable manifestations, if the stomach is full, slow digestion, stool is not smooth, we should go to the gastroenterology department to see a doctor, because since ancient times, there is the saying that if the stomach is not in harmony, it is restless; often dizziness, high blood pressure can go to the neurology department to see a doctor; if there is diabetes and If you have diabetes and complications, you should go to the endocrinology department; if you often have back and leg pain, you should go to orthopedics or surgery, etc. If it is simply bad sleep, you can go to neurology or psychiatry. The common causes of insomnia are as follows: stress and life events: a change in the sleep environment or some unexpected events around you lead to large emotional fluctuations, work intensity or life stress, etc.; self-trait personality: perfectionists, introverted personality or people with anxiety characteristics, etc.; both of the above are mental-emotional factors, preferred psycho-psychiatry. Habitual problems: pillow discomfort or usually drink a lot of energy drinks, too full or too hungry, too long daytime bed rest or for some reasons lead to irregular work and rest, etc.; family genetic factors: the incidence of insomnia in people with a family history of insomnia is three times higher than those without a family history; past medical history: certain physical and mental diseases, or those who take hormone or stimulant drugs; age and gender characteristics: increasing age is an important insomnia Age and gender characteristics: increasing age is an important risk factor for insomnia, and adult women have a progressively higher incidence of insomnia with increasing age, while there is no difference in gender distribution in childhood. The above cases are all physical disease factors, and different departments should be selected according to the diseases of different parts of the body, such as over-starvation and over-feeding, drink and stomach discomfort; gynecology is preferred for women with insomnia related to menstruation; orthopedics or surgery or pain department should be selected first for cervical spine, lumbar spine, leg pain and other joint and leg pain; elderly people, especially senior women with insomnia, can select different departments according to their different diseases. If insomnia also has mental symptoms such as dizziness, irritability, inability to be calm and impulsive, you can choose neurology. These diseases can also be treated by the Chinese medicine department, so that experts can treat them according to your clinical symptoms. In summary, insomnia is the end result of many complex factors. Those caused by diseases and drug factors generally see neurology first, and those caused by emotions and spirits generally see psycho-psychiatry first.