Depression, clinically known as depression, is a psychosomatic disorder and can usually be seen in psychiatry, psychology, or psychiatric departments. If the hospital does not have any of these departments, you can also go to the neurology department. In addition, this disease can also be seen in children, and can be seen in the child psychology department. Early detection and treatment of depression can effectively improve the prognosis, so it should be promptly identified. The disease is characterized by significant and persistent poor mood and depression, lack of interest, slow thinking activity, reduced speech and movement, and low energy, often accompanied by cognitive or psychomotor disorders or somatic symptoms. The symptoms can be mainly divided into the following categories: 1. depressed mood: significant and persistent emotional depression, depression and pessimism; 2. loss of interest or disappearance: lack of interest in everything, feeling bored with the things that used to be of interest, hobby activities, can’t get excited about anything, can’t get excited about anything; 3. loss of pleasure: feel a lack of pleasure or pleasure, can’t feel pleasure from anything, even when happy 4, no motivation, no motivation: feel the whole person “collapsed”, mental and physical loss of motivation, no longer have requirements, no longer have hope for life; 5, fatigue: the overall exhaustion of mental and physical strength, feel a lack of energy or loss, do not want to do anything, even if you can barely do something 6, appetite, weight change: loss of appetite, weight loss, there are a few patients, especially at night, the phenomenon of eating a lot, weight gain; 7, sleep disorders: early awakening, waking up 2-3 hours earlier than usual, can not fall back to sleep after waking up; sleep difficulties, sleep is not deep, too much sleep; 8, physical discomfort: dizziness, headache, neck pain, panic, shortness of breath, chest tightness, chest pain, lumbar pain. chest tightness, chest pain, back pain, numbness of limbs, muscle throbbing, constipation, loss of appetite, indigestion, etc. If you find one or more of these symptoms, you should go to the hospital in time to confirm the diagnosis and seek medical help if necessary.