Behaviors that are apparent in those with internalizing disorders include depression, withdrawal, anxiety, and loneliness.
[1] There are also behavioral characteristics involved with internalizing disorders.
Some behavioral abnormalities include poor self-esteem, suicidal behaviors, decreased academic progress, and social withdrawal.
[2] Internalizing one's problems, like sadness, can cause the problems to grow into larger burdens such as social withdrawal, suicidal behaviors or thoughts, and other unexplained physical symptoms.
Some treatments for internalizing disorders include antidepressants, electroconvulsive therapy, and psychotherapy.