Ego and narcissism are related concepts, but they're not the same.
Ego refers to a person's sense of self and their identity. It's a healthy and necessary part of the human psyche that helps individuals to have a positive self-image and confidence in their abilities.
Narcissism, on the other hand, is a personality disorder characterized by an excessive and unhealthy preoccupation with oneself, a lack of empathy for others, and a need for constant admiration and attention.
While a healthy ego can help a person navigate through life, narcissism can lead to destructive behavior and can negatively impact relationships and overall well-being.