People seek disability approval primarily to qualify for Social Security Disability Insurance (SSDI) or Supplemental Security Income (SSI) benefits from the U.S. Social Security Administration. The most common reasons for disability approval include musculoskeletal diseases and mental disorders, with a significant portion of disability benefits awarded based on these conditions.(5) Arthritis is a leading cause of disability, affecting millions, but the most common conditions leading to disability approval are musculoskeletal disorders and mental disorders.