English: Depersonalization/Derealization Disorder (DPDR) is characterized by persistent or recurrent episodes of detachment from oneself (depersonalization) or one's surroundings (derealization), while crucially maintaining intact reality testing. In depersonalization, patients often describe a subjective sense of being an "outside observer" or "robotic," whereas derealization manifests as the environment appearing "foggy," "artificial," or "dream-like." It is essential to recognize that these episodes are often triggered by severe stress or trauma and are frequently comorbid with anxiety and depression. Unlike psychotic disorders, patients with DPDR are acutely aware that their sensations are not literal reality, which often leads to significant distress.