Dissociative Identity Disorder (DID) is a complex psychological condition marked by the presence of multiple distinct identities or personality states within a single individual. Each identity may have its own name, age, history, and characteristics, leading to significant disruptions in memory, behavior, and identity. DID often arises from severe trauma during early childhood, such as abuse or neglect, serving as a coping mechanism to dissociate from painful experiences. Symptoms can include anxiety, depression, and substance abuse. While DID cannot be cured, effective treatment options, including psychotherapy and medication, can help individuals manage their symptoms and improve their quality of life. Support from family and friends is crucial for recovery.