Left lateral decubitus position

Lying, also called recumbency or prostration, or decubitus in medicine (from the Latin verb decumbere ′to lie down′), is a type of human position in which the body is more or less horizontal and supported along its length by the surface underneath. Lying is the most common position while being immobilized (e.g. in bedrest), while sleeping, or while being struck by injury or disease. Lying, also called recumbency or prostration, or decubitus in medicine (from the Latin verb decumbere ′to lie down′), is a type of human position in which the body is more or less horizontal and supported along its length by the surface underneath. Lying is the most common position while being immobilized (e.g. in bedrest), while sleeping, or while being struck by injury or disease.