(See also CHILD ABUSE.) Though NAI has traditionally been seen as abuse against children – and they are still the main victims – such injuries can also be inflicted on vulnerable adults. Adults with learning difficulties, dementias or physical disabilities sufficiently serious as to require institutional care (or who make heavy demands on relatives) are sometimes the victims of NAI. Health professionals, social workers and relatives should bear this possibility in mind when discovering unusual, severe or repeated bruising or fractures in vulnerable adults, even in circumstances where NAI may seem unlikely. NAI also includes neglect.