Rheumatological conditions are problems based around systemic inflammation, rather than being associated with a specific injury or overuse. Because they may behave similarly to regular orthopedic conditions, they may be misdiagnosed. Examples: -Ankylosing spondylitis -Psoriatic arthropathy -Enteropathic spondylitis -Juvenille idiopathic arthrtitis -Crystal arthropathy -Septic arthritis -Lupus -Sjogrens -Scleroderma -Myositis -Mixed/undifferentiated -Hypermobility -Vasculitis