Violence against children includes all forms of violence against people under 18 years old whether perpetrated by parents or other caregivers, peers, partners, teacher or strangers. This is a public health, human rights, and social problem: levels of violence against children are frightfully high and it is estimated that up to 1 billion children aged 2-17 years, have experienced a type of violence. Very few studies provided physical violence perpetrated at school but it can have a physical impact, causing psychological distress, permanent physical disability and long-term physical or mental ill-health. Children who experienced any type of violence at school may develop reactive attachment disorder, modest physical inactivity, overweight or obesity, diabetes, smoking habits, heavy alcohol use, poor self-rated health, cancer, heart disease, and respiratory disease and other negative outcomes. Evidence from international studies clearly shows that nonviolent, positive discipline delivers better results, while any type of violence is associated with many negative one.