A fear of heights is typically classified as Acrophobia, which is a specific phobia and a type of anxiety disorder, rather than OCD. However, there is a specific subtype of OCD known as "Harm OCD" or "Height-related OCD" where the two can overlap. While a person with acrophobia fears falling or the height itself, someone with OCD involving heights might experience "intrusive thoughts" or "The Call of the Void"—a sudden, unwanted urge or image of jumping off, even though they have no desire to die. These thoughts cause intense distress, and the person might perform "compulsions" like repeatedly checking their distance from the edge or avoiding balconies entirely to "neutralize" the fear. So, while a simple fear of heights is just a phobia, it becomes related to OCD if it involves persistent, unwanted, and intrusive thoughts that lead to ritualistic behaviors. If your fear is characterized by a "what if I jump?" obsession rather than just "I'm scared of falling," it may be worth discussing with a mental health professional who specializes in the nuances between phobias and obsessive-compulsive patterns.