Orem emphasised that the necessity for nursing arises from a person's incapacity to provide for themselves due to restrictions.
A popular nursing theory is the Self-Care Deficit Nursing Theory (SCDNT) (Im & Chang, 2012). This nursing theory was developed in response to the idea of self-care that Orem stressed, and it is still applicable in the current environment. The Dorothea Orem Theory started to advance in earnest in 1956. (Orem, 1985).