Internet addiction is a symptom, the problems behind Internet addiction are studied and solved by psychologists and medical experts, such as learning difficulties, attention deficit disorder (ADHD), neurosis, personality deviation, emotional (mood) disorders, learning stress, relationship difficulties, loneliness, introversion, childishness, boredom, lack of goals, low self-esteem, paranoia, no sense of responsibility, no sense of value, no sense of belonging, confrontation with parents, no gratitude, zero emotion, distrust of others, teacher-student relationship tension, single value evaluation system (academic achievement as the hero), lack of fatherly love, confused parental roles, strict mother and loving father, anxiety, social fear, obsessive-compulsive and other mental symptoms associated with Internet addiction, etc. If these problems are not solved, it is difficult for children to come out of Internet addiction. It is difficult to solve the above problems completely with a single psychological treatment, and a comprehensive treatment based on psychotherapy and medication (biological treatment) is necessary to solve the problem at root. It must be supplemented by education, militarization training, social experience, “five-in-one” combination. From our experience and research in treating more than 5000 cases, we found that the above problems cannot be solved in a short period of time, and that outpatient treatment is basically ineffective, so inpatient treatment, accompanied by parents, and family therapy are necessary. The so-called talking and preaching can solve the child’s Internet addiction problem, that is not a real Internet addiction, just a person who uses the Internet excessively. Using an educational approach can work to some extent, or even better, with early internet over-users. True Internet addiction is pathological, there are alterations in the neurochemical transmitters of the brain and brain imaging findings are altered. In particular, the co-morbidity of Internet addiction is not understood by those who are involved in education. Those who think that Internet addiction is an educational problem are one-sided and are not able to look at the whole aspect of Internet addiction. Because any behavioral problem is a product of brain work, it is impossible to become Internet addiction without abnormal brain function. We in psychology should look at and solve the problem of Internet addiction from the viewpoint of evidence-based psychology and the viewpoint of unity of mind and body. In addition, the environment in which the child grows up, family and social problems should be addressed together when treating the child’s Internet addiction problem, so that the child’s Internet addiction problem will not easily relapse. Any disease must be analyzed holistically from a social, psychological, and medical point of view. Co-morbidities of Internet addiction and accompanying psychiatric symptoms 1. Internet addiction combined with personality deviation: Patients show obvious introversion (loneliness, passivity, withdrawal), emotional indifference, interpersonal tension, excessive sensitivity and suspicion when encountering problems, inability to tolerate others, hostility, belligerence, jealousy, excessive conceit and self-centered tendencies, lack of cheerfulness, lack of close and trusting interpersonal relationships, frequent absenteeism from school, easy Impulsivity, emotional outbursts, frequent lying, low tolerance for frustration, and easy irritability are symptoms that parents should pay high attention to. 2, Internet addiction co-morbidities have attention deficit and hyperactivity disorder: is a group of syndromes that occur in childhood, compared with children of the same age, and manifest both obvious difficulty concentrating attention, short attention span, and excessive or impulsive activity. Symptoms occur in a variety of settings (e.g., home, school, and clinic). Symptoms of attention: (1) easily distracted when studying, hearing any external sound to visit; (2) very inattentive in class, often looking around or dazed; (3) procrastinating in doing homework, playing while doing it, dirty and messy homework, often under-doing or doing it wrong; (4) not paying attention to details, often making careless mistakes in doing homework or other activities; (5) losing or particularly unloving things (e.g. often make clothes, books, etc. dirty and messy); (6) has difficulty always following instructions and completing homework or chores, etc.; has difficulty doing things consistently and often goes on to do something else before finishing one thing; (7) is often distracted and seems to listen when talking to him; (8) often loses things in daily activities;). Hyperactivity: (1) has difficulty sitting still or twisting around in his seat on occasions when he needs to sit still; (2) often makes small movements in class, or plays with things, or whispers with classmates; (3) talks a lot, is good at interrupting, and rushes to answer before others finish asking questions; (4) is very noisy and cannot play quietly; (5) has difficulty in observing the order and discipline of group activities, such as rushing to the field during games and cannot wait; (6) interferes with (6) interferes with other people’s activities; (7) teases children, easily gets into disputes with classmates, and is unpopular with peers; (8) is easily excited and impulsive, and has some excessive behaviors; (9) runs or climbs up ladders in inappropriate situations, is adventurous, and is prone to accidents. Adverse effects on social functions (such as academic performance, interpersonal relationships, etc.). 3, Internet addiction co-morbidities have depressive states: patients show depressed mood, sullenness, loss of interest, no sense of pleasure, reduced experience or fatigue, low self-evaluation, self-blame, or feelings of guilt, difficulty in association or or reduced ability to think consciously, poor concentration, recurrent thoughts of death or suicidal or self-injurious behavior, sleep disorders, such as insomnia, early awakening, or excessive sleep, reduced appetite or significant weight The symptoms should be taken seriously. The symptoms should be taken seriously. 4, Internet addiction co-morbidities have manic episodes: patients show high mood, inattention or shift with the situation, increased amount of language, thinking runaway (increased speed of speech, broken speech, etc.), accelerated association or the experience of drifting ideas, self-evaluation is too high or exaggerated, energetic, do not feel tired, increased activity, difficult to quiet, or constantly change plans and activities, reckless behavior (such as squandering, irresponsible, or reckless behavior, etc.), reduced need for sleep, and other symptoms. 5, Internet addiction co-morbidity has phobia (phobia): is a neurosis based on excessive and unreasonable fear of external objects or situations. Patients know that there is no need, but still can not prevent fear attacks, fear attacks often have significant anxiety and autonomic symptoms. Patients try to avoid the feared object or situation, or endure it with fear. There is a strong fear of certain objects or situations, the degree of fear is not proportional to the actual danger, there is repeated or persistent avoidance behavior, the fear is known to be excessive, unreasonable, or unnecessary but cannot be controlled, and avoidance of the feared situations and things must be or was a prominent symptom. Place phobia: The object of fear is mainly certain specific environments, such as schools, squares, closed rooms, dark places, crowded places, transportation (e.g., crowded ship cabins, train cars), etc. One of the key clinical features is an excessive fear of being in the above situations without an immediately available exit. Social phobia: The main objects of fear are social situations (such as eating or talking in public, parties, meetings, or fear of embarrassing behavior) and interpersonal contact (such as contact with people in public, fear of meeting the eyes of others, or fear of being scrutinized when facing the crowd, etc.). Due to the patient’s fear and afraid to go to school to study, often and parents v. its want to go to school, but to school and back home, in order to relieve their nervousness and invest more time in the network, can not extricate themselves, parents should pay attention to. 6.Internet addiction co-morbidity has anxiety: the patient lacks clear objects and specific content of anxiety, and nervousness and anxiety mainly, and has significant vegetative symptoms, muscle tension, and motor restlessness, rapid heartbeat, irritability, sweaty palms, etc. The patient can hardly stand and can not relieve, and feel pain, and constantly prolong the time of Internet to relieve the bad mood. 7, Internet addiction co-morbidity has obsessive-compulsive disorder: it is characterized by the coexistence of conscious self-compulsion and counter-compulsion, and the strong conflict between the two makes the patient feel anxious and painful, the patient experiences that the idea or impulse is from the self, but against their will, although they try to resist, but can not control, the patient is also aware of the abnormality of compulsive symptoms, but can not get rid of. Usually, the patient has mainly obsessive thoughts, including compulsive ideas, memories or representations, compulsive oppositional ideas, exhaustive thinking, and fear of losing self-control, etc. The patient also has mainly compulsive behaviors (actions), including repeated washing, checking, examining, or questioning. Patients claim that the compulsive symptoms originate from within themselves and are not imposed by other people or external influences. The symptoms recur, and the patient finds them meaningless and unpleasant, even painful, and therefore tries to resist them, but they do not work. Patients prolong the time they spend on the Internet to relieve their compulsive symptoms, which cannot be controlled. 8.Internet addiction combined with somatization disorder: It is a neurological disorder dominated by a variety of frequently changing somatic symptoms. Symptoms can involve any system or organ of the body, the most common are gastrointestinal discomfort (such as pain, hiccups, acid reflux, vomiting, nausea, etc.), abnormal skin sensations (such as itching, burning, tingling, numbness, soreness, etc.), skin spots, sexual and menstrual complaints are also common, and there is often significant depression and anxiety. The course is often chronic and fluctuating, and is often accompanied by severe and long-standing impairments in social, interpersonal and family behavior. The physical symptoms are (1) gastrointestinal symptoms, such as: abdominal pain; nausea; bloating or flatulence; tasteless mouth or thick tongue; vomiting or regurgitation; frequent stools; loose stools, or watery stools; (2) respiratory circulatory symptoms, such as: shortness of breath; chest pain; (3) urinary circulatory symptoms, such as: difficult or frequent urination; discomfort in or around the genitals; abnormal or copious vaginal discharge; (4) skin symptoms or painful symptoms, such as: scarring; pain, numbness, or tingling sensation in the limbs or joints. Physical examination or laboratory tests do not reveal evidence of a somatic disorder and can provide a reasonable explanation for the severity, variability, persistence, or secondary impairment of social functioning of the symptoms; the predominant perception of the above symptoms causes the patient distress, constant consultation, or requests for various tests, but negative test results and reasonable explanations by the physician do not dispel his or her doubts. Patients also spend longer time on the Internet to relieve their symptoms. 9. Internet addiction co-morbidity with oppositional defiance: mainly obvious disobedience, defiance, or provocative behavior, but no more serious social disorder or aggressive behavior that violates the law or offends the rights of others. There are the following symptoms: (1) often lie (not to avoid punishment); (2) often rage, good temper; (3) often resent others, harboring grudges, or revenge; (4) often refuse or ignore the requests or regulations of regular people, long-term serious disobedience; (5) often blame others for their own faults or misconduct; (6) often argue with adults, often confront parents or teachers; (7) Often interferes with others intentionally. The symptoms have been present for 6 months. 10.Internet addiction combined with cigarette addiction, food addiction and sex addiction.