For example, broken bones in a child too young to walk or climb. Disagreement between the child's and the parent's explanation of the injury. Unreasonable explanation of the injury. Shying away from physical contact with parents or adults. Afraid to go home.
Abuse can happen in any family, regardless of any special characteristics.
Parents who tell you they were abused as children. Parents who abuse drugs or alcohol. Parents who are very critical of their child. Parents who are very rigid in disciplining their child. Parents who show too much or too little concern for their child.