The number of medical theories that have developed throughout the history of medicine are numerous. They may even outnumber the physicians. From the purifying of the blood because of draining with Leeches to the developments in physical therapy to rehabilitate a total knee replacement patient, the degree of sanity involved with a theorys development vary. However, Dorothea Orems Self Care Deficit Theory is so grounded in the patients overall well-being that it must be grouped into a category with progressive medical practices that help make peoples lives better.