1, environmental adaptation. It is especially common among freshmen, who quickly enter the university after a stressful senior three life, and the environment has completely changed. Strange classmates, strange campuses, strange teachers and strange ways of attending classes make them particularly uncomfortable. 2. During college, learning is no longer urged and forced by teachers like high school, and grades are no longer concerned by most people. Ambiguous purpose, lack of motivation and confusion about the future have gradually become common problems for college students. 3. There are more courses in universities, which are no longer limited to basic knowledge like high school, but pay more attention to the combination of theory and practice. The knowledge in universities is more professional and directional, and the difficulty is higher than that in high schools. 4. The learning direction and learning objectives are unclear. Employment is a very important issue. College students are not interested in their major, do not understand it, have no motivation to learn, and lack learning plans for the future.