Many people are unable to access healthcare simply because of who they are. They may be afraid to seek help, or are excluded because they are forced to live outside of mainstream societal bounds.
Social violence and exclusion has devastating consequences. People who are excluded include undocumented migrants, street children, sex workers, prisoners, drug addicts or the mentally ill. Sometimes, entire communities are systematically neglected by relevant authorities. These might be people who live in slums, or communities hit by criminal violence and gang warfare.