Early education experts said that in general, children with psychological problems will have abnormal changes in mood, behavior and physiology. These external manifestations can be regarded as psychological help signals, mainly in the following aspects.

First, emotional performance: fear, anxiety, unwillingness to go to school, easy to get angry, and suicidal (thinking that living is boring, feeling like years, decreasing or changing interests, depression).

Second, behavior: being alone, not playing with children of the same age, being silent, talking less, moving less, not paying attention, stealing things and so on.

Physiological manifestations: head and abdomen pain, nausea, vomiting, anorexia or overeating, early awakening, difficulty in falling asleep, tinnitus, frequent urination and even general malaise, while physical examination and laboratory examination showed no physical illness.

Fourth, concern: self-harm, self-punishment, self-abuse. Repeated and rigid behaviors or actions, or asking similar questions many times, can't help but annoy others. Their gender roles are not harmonious, or cross-dressing or collecting, preferring products of the opposite sex. Contrary to teachers or parents. Self-neglect, lack of enterprising desire, no sense of responsibility, no sense of internal disease. There is no obvious reason for being tired of learning, and the results are obviously reduced, and the learning efficiency is reduced. Poor social skills, unable to express in words, often avoiding eyes when speaking.