1. Health problems: Drug abuse will have a serious impact on students' health, including but not limited to heart disease, lung disease, liver injury and immune system damage.
2. Academic damage: Drug abuse will affect students' learning ability and attention, leading to a decline in academic performance and even dropping out of school.
3. Psychological problems: Drug abuse will cause students' psychological problems, such as anxiety, depression, schizophrenia and so on. In severe cases, it may lead to suicidal tendencies.
4. Social problems: drug abuse will make students lose contact with family, friends and society, leading to interpersonal tension and even mental breakdown.
5. Legal issues: drug abuse is illegal, and students' drug abuse may involve legal issues, such as arrest and criminal punishment.