Dr. Varun Khanna advises on the appropriate timing for an MRI in cases of back pain. An MRI is recommended when the pain persists over an extended period or when the cause of the pain is unclear. It provides detailed information to an informed healthcare professional, aiding in accurate diagnosis and potential treatment options. If back pain is severe, sudden in onset, or worsens at night, prompt medical evaluation and consideration of an MRI become essential for a comprehensive understanding of the underlying issues and to facilitate timely and effective management.