Established in 1988 to increase public awareness of ankylosing spondylitis and related diseases and to disseminate knowledge of the diseases around the world

Related diseases: Ankylosing spondylitis sometimes overlaps with psoriasis, with an inflammatory bowel disease (Crohn's disease or ulcerative colitis), or with the eye conditions uveitis or iritis. These overlapping conditions as well as Reiter's disease, reactive arthritis, and undifferentiated spondyloarthropathy, form together the group of related diseases collectively known as "spondyloarthritides" or "spondyloarthropathies".

For details on these conditions visit for instance"What is spondylitis?" and consecutive pages of the "Spondylitis Association of America", or "Questions you may have" and consecutive pages of the British "National Ankylosing Spondylitis Society". For details in other languages visit the web sites of corresponding AS societies.

Literature on ankylosing spondylitis offered by the patient organisations is listed in the web-sites of the AS societies.
Literature on ankylosing spondylitis available in book shops is listed with  ISBN numbers in a separate list of books.

Within the ASIF website, you find information on

The Aims of ASIF
ASIF's address and Executive Committee
National AS societies
World map indicating where AS societies exist
Aims of AS societies
Call for contribution to a research project on AS and offspring
How to set up a new AS patient organisation
How to become an ASIF member organisation?
ASIF constitution
ASIF history
ASIF News: contents of distributed issues
Books on ankylosing spondylitis
Scientific studies initiated by ASIF
Guidebooks for AS patients in languages where a printed guidebook does not exist
Forms for assessing disease activity, functional limitations, mobility, global well-being, and radiologic changes in AS