There are two categories of homelessness - temporary and chronic. Temporary homelessness lasts a short time, while chronic homelessness is caused by multiple contributing factors and requires significant support to overcome. Common causes of homelessness include lack of employment, poverty, lack of affordable housing, domestic violence, addiction, and mental/physical disabilities. Once homeless, people face obstacles to obtaining housing like a shortage of affordable housing and shelter, anti-camping laws, and untreated addiction or mental health issues like PTSD from abuse or trauma.