"One of the stumbling blocks to accessing effective treatment for individuals with OCD is that OCD can sometimes be confused with other disorders. The newest edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) which mental health professionals use to help diagnose mental health disorders in fact, groups together these "related disorders" in the same chapter.
While some disorders can have overlapping symptoms with each other, being diagnosed with the right disorder has incredibly important implications for treatment, and therefore it is important to make sure you receive the right diagnosis. Even similar disorders can have very different treatments. And providing the wrong treatment for someone can result in extended, unnecessary suffering, wasted time, wasted resources, and potentially feeling hopeless about getting better."