Poor health can contribute to being homeless, and being homeless can lead to poor health. Limited access to health care can make it worse. That's why the health of homeless people in the United States is worse than that of the general population. Common health problems include Mental health problems Substance abuse problems Bronchitis and pneumonia Problems caused by being outdoors Wound and skin infections Many homeless women are victims of domestic or sexual abuse. Homeless children have high rates of emotional and behavioral problems, often from having witnessed abuse.