What is dissociative identity disorder? How does substance use disorder develop? Dissociative Identity Disorder (DID) is a complex mental health condition characterized by the presence of two or more distinct personality states, often resulting from severe childhood trauma or abuse. Individuals with DID may experience memory gaps, identity confusion, and difficulty maintaining relationships. Substance Use Disorder (SUD) develops when prolonged use of alcohol or drugs leads to physical dependence, psychological cravings, and impaired functioning. Factors such as genetics, environmental stressors, trauma, and co-occurring mental health conditions contribute to its onset. Early intervention through therapy, support groups, and psychiatric care is essential for recovery. For professional assessment and treatment, consult Delhi Mind Clinic ('https://www.delhimindclinic.com/') or explore the Best Psychiatrists in Delhi ('https://www.bestpsychiatristsindelhi.com/') for expert guidance.