Several autoimmune diseases are associated with HLA B27. These include:
- [Juvenile Idiopathic Arthritis (JIA)](): Particularly the enthesitis-related arthritis (ERA) subtype. - [Ankylosing Spondylitis](): A type of arthritis that primarily affects the spine. - [Reactive Arthritis](): Often develops in response to an infection in another part of the body. - [Uveitis](): Inflammation of the uvea, the middle layer of the eye.
