There are many reasons for the emergence of anorexia, as follows: First, it may be learning pressure, bad results, there may be a very strong sense of frustration, it is difficult to learn to have joy as well as happy feeling, in the long run will appear anorexia. Second, it may be encountered interpersonal pressure or learning pressure, these pressures are too heavy, do not do a combination of work and rest, the overburden is very easy to make people have a rebellious mind, such as parents are always forcing children to learn, especially only require learning achievements, but not pay attention to the process of learning hard, will let the child produce very obvious pressure is too heavy, too heavy problem, will appear rebellious and anorexia mood. Third, there may also be personality and behavioral problems, for example, some children are more introverted, sensitive, or some children appear to be truant as well as rebellious behavior, common smoking, drinking and other problems, there may be anorexia. Fourth, it may also be caused by learning disabilities, such as some children’s intellectual level or academic performance is not very good. Whichever of these causes leads to a drop in grades, it is possible for a child to develop an aversion to school.