One of the main causes of adolescent aggression can safely be called the specifics of child rearing by parents. Some moms and dads since childhood, encourage your child, if it meets the aggression of intervention into the personal space of other children. Such moments can't go unnoticed. With age, the situation is exacerbated and teen aggressive without proper reasons. 2 Relationship between the parents also play a role in how to grow their son or daughter. If the family can often hear swear mom and dad, if there are cases of physical abuse, mutual humiliations and insults, the child may also begin to behave aggressively. For him this way of communicating becomes the norm, because parents are the authority in the childhood for the child, and he can easily absorb the features of their communications. 3 Repression was a child his parents too can lead to aggression in adolescence. If mom and dad since childhood, teaching the child to hold back, to keep feelings to yourself, sooner or later, all the accumulated emotions can burst out through aggressive behavior of a teenager. Parents need to teach kids not to ignore their own feelings and to interpret them correctly and to cope with negative emotions, and not by feelings. 4 Sometimes unjustified aggression serves as a way to achieve a teenager. He doesn't know how else you can get what you want, or not want to act more peacefully, because he believes that with aggressive behavior faster and more accurately to achieve their goals. This applies to various situations. The reluctance and inability to effectively negotiate with other members of society forces the teenager to solve the problem by force. 5 The susceptibility and suggestibility of the person at teenage age also plays a significant role in the growth of its aggressiveness. Teenagers easily absorb standards of conduct from horror films, crime reports, computer games with elements of violence and adopt the habit to aggression from each other. Circle of friends is very important for boys or girls. They don't want to stand out from the crowd and easily accept anti-social behaviour as the norm. 6 Do not forget that sometimes the aggressiveness of the teenagers is caused by hormonal reorganisation. The beginning of functioning of sexual glands causes a storm of emotions with which he or she simply cannot cope. Appears restlessness, irritability, impulsivity and aggression.