Social media can significantly impact self-esteem, both positively and negatively. On the negative side, constant exposure to **idealized images** and curated lifestyles often leads to **social comparison**, where individuals compare themselves to others, which can foster feelings of inadequacy, body dissatisfaction, and lower self-worth. **Cyberbullying** and negative comments also contribute to diminished self-esteem. On the positive side, social media can provide **supportive communities**, validation, and encouragement, boosting confidence and self-expression. The overall impact depends on how individuals use social media, the content they consume, and their ability to maintain a healthy perspective on online interactions.