Some parents think that depression is only a disease that adults are prone to in modern society, how can their child, who is still a student, also have this disease? In fact, depression does not distinguish between the old and the young, and it tends to be younger these days. It is more common among college, middle school and elementary school students, and each has its own characteristics and similarities with non-pathological emotional behaviors, which are often difficult to distinguish. Parents, teachers and non-professionals, if you find that your child has the following conditions and they last for a certain period of time (more than 3 months), you should have one more question mark in your head: Are they suffering from depression? I. Childhood depression: It is mainly seen in elementary school students, with an age range between 7 and 12 years old. Triggering factors include: some minor setbacks and aggressions at school, hearing parents quarrel, some girls onset at the first menstruation stage. Special manifestations: 1. Emotional sadness: they often cry and have strange thoughts, such as “my mom doesn’t want me anymore”, “my teacher doesn’t like me anymore”, “I didn’t get elected as an officer”, “I didn’t get the little red flower”. “Sometimes, they may suddenly say things like “what’s the point of living, let’s just die”, which is incomprehensible. 2. Behavioral withdrawal: The child does not go to school for a long time and has an unexplained avoidance of school. No matter how the parents work, the child is struggling. Some children are anxious about missing classes and promise to go to school tomorrow, but they still can’t go when the time comes. 3, depression somatization: children become weak and sickly, often complaining of headaches, chest tightness, abdominal pain, reluctance to eat, etc., no problems found in the examination, according to the treatment of physical diseases or take some supplements also do not work. Second, juvenile depression: seen in junior high school students, the age range between 12 to 16 years old. Predisposing factors include: frustrated self-esteem, poor family education, parental divorce, obsession with the Internet, etc. Special manifestations: 1. Excessive self-blame: when one or two test scores drop, others exceed their own, they will continue to be depressed, the brain into the “I am very poor, the future will look down on me” in the bull’s-eye, no matter how the family persuasion, but never get out of the pain. 2, emotional paranoia: often lose their temper, see everything is annoyed. The rhythm of life, such as eating, drinking, sleeping, etc., becomes slow and disorganized, and no matter what parents point out, they always refute it with a confrontational attitude. 3, psychological isolation: become withdrawn, speechless, as soon as they get home, they shut themselves in the house, do not talk to their families, what they think inside, why, can not say clearly. 4, dieting and weight loss: start to pay attention to their bodies, originally normal weight but prefer to lose weight, three meals a day carefully, calculating, when the reduction of the face yellow and thin, unable to study also do not think of repentance, depression and anorexia form a vicious circle. Third, youth depression: high school students and college students come to the clinic more often, the age range between 17 to 23 years old. The triggering factors of depression in high school students are: highly stressful study atmosphere, lack of sleep, monotonous and boring life style, etc. Special manifestations: 1. Learning disorders: memory loss, slow reaction, inattention, mind always wandering, sometimes blank. The knowledge that you usually know, sometimes you feel that nothing can be done, and the results of the big test are much worse than the usual test, and as the mood becomes more and more pessimistic, the academic performance slides more and more. 2, excessive suspicion: the mind is often thinking that classmates are imitating themselves, behind their backs are talking about or abusing themselves, their actions are provoking themselves, etc.. Thinking that their eyes are abnormal, afraid to look up to see others, speak in a low voice, or even think that they or their family members are being monitored. 3. Abnormal somatic sensation: treating normal physiological state as sickness and spending most of their energy every day thinking about the seriousness of the “illness”. For example, they repeatedly say they have a noise in their nose, something in their throat, their stomach is always jumping, and their feet and neck are bulging out. When they go to the hospital for repeated examinations, no matter how the doctors explain, they insist on their own opinions and keep talking about these pains with tears. Fourth, the main predisposing factors of depression among college students are: maladjustment to the university environment, interpersonal conflicts, family poverty, lost love, etc. Special manifestations: 1. Mental depression: after arriving at university, they feel inconsistent with their imagination and think that what they have learned is of little use in the future. A person is silent all day long, alone, not involved in group activities, often back to the dormitory lying in bed seemingly asleep. Fear of failing exams, there is one or several courses failed. 2.Suspension and withdrawal: the reason for suspension and withdrawal from school is perverse, it is not clear why, anyway, do not miss. 3, suicidal behavior: college students depression suicide rate is high, not easy to be detected beforehand. Suicide is mostly jumping from buildings, followed by taking sleeping pills and slitting wrists. Those who are unsuccessful in suicide still have repeated suicidal thoughts or behaviors after rescue. In addition, depression in children and adolescents has the following characteristics: First, some students have a cause for the onset of depression, while others do not, and when the triggering factors are eliminated, their condition does not improve subsequently. Second, depression in students is easily co-morbid with obsessive-compulsive, anxiety and anorexia nervosa, and can also have psychotic symptoms, but the main clinical symptom is depression, and antidepressant treatment will cure other co-morbidities at the same time. Third, student depression is mostly misunderstood by parents and teachers as an ideological and moral problem, and long-term repeated ideological work is not effective, but the condition is aggravated.