Sometimes the parents feel difficulty recognizing the difference between variations in normal behavior and true adolescent behavior problems.

There is no border line between normal and abnormal teen behavior. A line can generally divide normal from abnormal youth behavior. Behavior difference between teens defines by teen's level of development and age. Teens behavior depends on particular circumstances and time, as well as by the teenagers own family standards, expectations, and cultural or social background.

It is common for adolescent and teenagers to have behavior-related problems at during their growth. However, the behavior is considered to be a conduct disorder when it violates the rights of others, goes against accepted norms of behavior and disrupts the whole family life.

The following symptom declared the teens behavior disorder.
•Aggressive behavior: These are reason physical damage and may include fighting, bullying, being cruel to others, using weapons.

•Destructive behavior: This involves intended ruin of property such as arson and harming another person's property.

•Deceitful behavior: this behavior include lying, shoplifting or breaking things

•Violation of rules: This includes going against accepted rules of society that is not appropriate for the person's age. These also include running away, skipping school, playing pranks or being sexually active.

If these symptoms are present, the doctor will start an evaluation by performing a whole medical history and physical examination. Although there are no any technique that tests to specially diagnose behavior disorder.

Doctor use various test to rule out physical illness or medicines side effects as the reason of the symptoms. The doctor will also look for symptoms of other disorders such as ADHD and depression.

The Treatment is behavior disorder based on many factors, including the teens age and, the severity of symptoms therapies. Treatment usually consists of a combination of the psychotherapy and medication:

•Psychotherapy: Psychotherapy is aimed at helping the teenagers learn to express and manage anger in more proper ways. Another type of treatment called cognitive-behavioral therapy aims to reshape the teenagers thinking to progress problem solving skills, anger management and impulse control.

•Medication: reaserch show that there is no medication formally approved to treat conduct disorder, various medications may be used to treat some of its distressing symptoms, as well as any other mental disorder that may be present, such as ADHD , ADD or depression.