Learn about the various conditions that are related to spondyloarthritis.
Spondyloarthritis diseases
Ankylosing spondylitis

Ankylosing spondylitis
Ankylosing spondylitis (AS) is a chronic, progressive, painful form of inflammatory arthritis, which affects the spine and sacroiliac joints. It can also affect other joints, tendons and ligaments.
Axial spondyloarthritis

Axial spondyloarthritis
Axial SpA is a broad category that includes people with and without characteristic inflammatory changes of the sacroiliac joints seen on X-ray.
Peripheral spondyloarthritis

Peripheral spondyloarthritis
Peripheral SpA commonly causes inflammation in joints and/or tendons outside the spine or sacroiliac joints.
Enteropathic arthritis

Enteropathic arthritis
Enteropathic arthritis is a form of inflammatory arthritis that can affect the spine and peripheral joints. Learn more about the symptoms, and diagnosis.
Juvenile onset spondyloarthritis

Juvenile onset spondyloarthritis
The term juvenile idiopathic arthritis (JIA) was introduced to standardize and classify the different arthritic conditions seen in children; learn more.
Psoriatic arthritis

Psoriatic arthritis
Did you know about 30% of people with psoriasis also develop psoriatic arthritis and of these about 20% go on to experience some spinal involvement? Learn More
Reactive arthritis

Reactive arthritis
Learn about reactive arthritis through the Canadian Spondylitis Association, including information on diagnosis, symptoms and management.
Undifferentiated spondyloarthritis

Undifferentiated spondyloarthritis
Learn more about undifferentiated spondyloarthritis (USpA), its symptoms, diagnosis and management through the Canadian Spondylitis Association.