Why do teens bully other teens?

Inferiority: Believe it or not, bullies tend to have inferiority complexes, often from having been bullied themselves. and yes, it can continue into adult life. Tell someone you know and trust about the bullying. Keeping it inside does no good.

Multiple reasons: Some include-sadness , or hx of trauma or abuse, poor social skills, bad judgement, insecurity and poor parental care are a few