There are many psychiatry textbooks and psychiatric experts have described the clinical manifestations of depression, but for most doctors and even patients’ families, they tend to pay attention only to the typical symptoms, and often turn a blind eye to some manifestations that are not emphasized by textbooks or experts. Based on my clinical observation, I would like to list the following three easily overlooked symptoms, in order to arouse the understanding and attention of clinical workers or patients’ family members, and to make it easier for everyone to recognize the symptoms of depression. Expression: eyes without color, face without smile, speech without laughter Some people say: “If there is no trouble hanging over your head, it is a good time of life”. It can be seen that people without worries, will be happy. Generally speaking, if a person’s life and work is smooth, family relations are harmonious, his mood should be normal, or happy. His eyes should be glittering, gleaming, expression should be natural relaxation, slightly smiling, may also be happy from time to time, smile frequently, and even issued a cheerful laughter. On the contrary, if a person whether the life situation is really difficult, or for no apparent reason many worries, are considered to have a troubled heart. At this time, he is concerned because of the heart, it will be eyes without light, or eyes confused, full of sadness, at least not smile, that is, or a fleeting smile, but also more fleeting, or a bitter smile. Therefore, the human expression is the external reflection of the inner emotional experience. If a person has depression, there must be a corresponding reflection in the facial expression, showing fluttering eyes, smile to reduce or even disappear, very few smiles in a good mood, and then there has been no bright laughter. Thinking: always unlucky, often angry, often “poor” Generally speaking, if a person is happy, good mood, happy mood, will have confidence in their own state and living environment, a satisfactory evaluation of their own and the environment, and others also have enough goodwill and trust. Such a state can be reflected by the content of their thinking. If a person’s mood is poor, especially if he or she has persistent low mood, he or she is bound to have biased and erroneous cognitions and evaluations of his or her own state and living environment, and such cognitions and evaluations can be reflected through the content of his or her thinking. On the one hand, their cognition of their own state is negative and pessimistic, which I call “unlucky”, i.e., they will unconsciously or consciously or unconsciously prejudge all the events that are going to happen to them as the worst possible outcome. It is even an exaggeration to say that they implicitly believe that they are going through the bad luck of “drinking cold water will be stuffed with teeth”. They are skeptical when they are healthy, always suspecting or worrying that they will suffer from “incurable diseases”. And once the body is not feeling well, it is predicted to suffer from cancer, bleeding gums, but also predicted to escape the bad luck of leukemia. On the other hand, they also hold pessimistic and negative perceptions and judgments about the people and things in their surroundings, which I call “pathetic” or “sufferer” perceptions. They always preconceive that others have contempt for them, and always look for evidence or information to support their assumptions, until they are convinced that others do not have good intentions for them, which then develops into a typical delusion of victimization. In their eyes, everyone is an enemy, and everyone is harboring evil intentions. Sometimes, I would say to people with such cognitive patterns, “Look at you, you’re so popular, there’s not even a single person in the world who has good intentions for you, how pathetic.” Imagine, if the whole world is against a person, either this person is “unforgivable”, or “there are no good people in Hongdong County”, all the other people in the world are bad people, only one good person left in the world. Therefore, the “unlucky guy”, “poor guy” mentality reflects pessimism, low self-esteem depression cognitive tendency, suggesting that belongs to the depressive thinking mode. Behavior: acting conservatively, admitting defeat at every turn, often feeling incompetent Mentally normal people will make choices based on the probability of success when faced with a challenge. If the probability of success is slightly higher, the person is likely to rise to the challenge and win. On the contrary, if the chance of success is slim, they will not act rashly and look for other chances of success. Generally speaking, even if they are in a difficult situation, they will not easily admit defeat or defeat, as long as there is a point of possibility, they will do their best to win. On the other hand, people in a state of depression, due to the lack of confidence to fight and win, usually always deliberately avoid difficulties and challenges, lest one move is not careful, the whole game is lost. I summarize this phenomenon as “not being able to afford to lose”, i.e., predicting that they are doomed to lose in any game, and simply will not respond to the battle, or flee when they see the slightest sign of defeat. At this point, they will feel incompetent and helpless, but they will often shirk their responsibilities in order to avoid being held accountable, criticized and blamed. It can be said that, in terms of behavioral characteristics, they never “know that there is a tiger in the mountain, but they always go towards the tiger mountain” or “rise to the challenge”, but they always “retreat from the challenge”, “surrender without a fight”. The above expressions of depression involving expression, cognition, and behavior can be very severe or obvious when a person’s depression meets the diagnostic criteria. However, because the core symptoms of depression, such as “depressed mood,” “loss of interest,” and “lack of energy,” are prominent at this point, these symptoms are of less diagnostic value and are likely to be They are likely to be ignored. On the other hand, if a person’s depression is not fully manifested, or if his or her overall functional status is not yet severely affected by depression, the condition may not meet the diagnostic criteria. Early detection of these symptoms is clinically important for the correct identification of depression.