World Arthritis Day is just around the corner and while we celebrate this cause it is essential for us to know true facts about the condition rather than assuming things and then acting inappropriately based on these assumptions. Here is a list of myths on arthritis that need to get busted for better diagnosis and treatment approach. Myth - Arthritis is an age-related disorder: It is a common belief that you get arthritis only when you are old. However that is absolutely not true. Arthritis can happen to anyone from babies to teenagers to young and old adults say doctors.