This document discusses self concept and self perception. It defines key terms like self concept, self perception, and self awareness. It describes how self concept develops over the lifespan through social interactions. Positive self concept is associated with benefits like strong relationships while negative self concept can cause issues like poor health. The document also outlines factors that influence self concept such as development stages, family, stressors and illness. It provides examples of how nursing can assess, diagnose, plan and evaluate care for patients with altered self concepts.