Yes, grabbing someone by the arm so hard that it leaves a bruise can be considered physical abuse. Physical abuse is any intentional act of causing harm or injury to another person through physical force. It can involve hitting, slapping, punching, kicking, pushing, grabbing, or any other action that causes physical pain or injury.
Leaving a bruise indicates that the force used was significant enough to cause damage to the skin and underlying tissues. Such behavior is unacceptable and can have serious physical and emotional consequences for the person being abused.
If you or someone you know is experiencing this type of abuse, it's crucial to seek help and support. Reach out to a trusted adult, a friend, a teacher, or a counselor who can offer assistance and guidance. Reporting the abuse to the appropriate authorities, such as child protective services or law enforcement, may also be necessary to ensure the safety and well-being of the person being abused. Remember that everyone deserves to be treated with respect and kindness, and abuse of any kind is never justified.