Racial differences can cause several major crimes by adolescents as adolescents become aggressive and want to take revenge on society for the unequal treatment that society shows them. Drug use is also a very common cause of juvenile delinquency. Those youth who use drugs usually get involved in criminal activities as most of their friends belong to the criminal class. Adolescent boys and girls go through several social problems when they are not well socialized human beings. Some teenagers are very harsh and rude in speech and cannot control their anger or aggression as is their nature. Most boys with gender bias talk to the opposite sex as if they are slaves and do not respect them. Their violence and aggression lead them to commit crimes that other kids would never commit. Psychological and mental concerns are also important when it comes to juvenile delinquency. Mental disability is another major cause of juvenile delinquency. Mentally ill boys and girls can commit any crime without knowing the consequences. Statistics show that mental illnesses are one of the major reasons behind juvenile delinquency in America and other developed countries