It's very upsetting and shocking when you find out that your kid is a bully. No matter how stressful and distressing it could be, you need to face the issue and discuss this immediately with your kid. Regardless if the bullying is verbal or physical in form, if it is not stopped it could result to a more aggressive behavior. It could even affect your kid's performance in school and in maintaining relationships with other people.
There are many reason why kids become bully. Some kids feel insecure so they bully other kids. Picking on other kids who looks physically or emotionally weaker gives a feeling of being more important, in control, or popular. There are some cases when children bully because they simply don't know that is's wrong to pick on other kids who may seem different because of their race, size, religion, or apperance.
There are even instances when bullying is a part of a current pattern of aggressive or defiant behavior. These children need to help learning to handle their frustration, anger, hurt, and other strong emotions. One way to help these kids is through professional counseling to helo them learn how to deal with emotions, enhance their social skills, and decrease their bullying.
You need to help your kid to stop bullying other kids. You have to let your child know that bullying is not acceptable. You need to help your kid understand that bullying can lead to serious consequences in school, at home, and in the community. Make sure that you have time to listen and understand what your kid is going through.