Social realism is a gritty, unflattering form of art and literature which began in the early 1900s and blossomed during the Great Depression. Many in this movement were American, but others in the Western Hemisphere participated such as the Mexican painter Frida Kahlo.
Social realism is often associated with Regionalism, but social realism sometimes had an element of political protest which Regionalism always lacked.
In England, a grim painting in 1891 about a sick child while visited by a physician is considered social realism.[1]
Photographers were part of the social realism movement also.