Inflammatory Arthritis

You may have inflammatory back pain if you answer yes to at least 4 of the 5 statements below.

Back pain of more than 3 months duration is inflammatory if:

• Age at onset less than 40 years.
• Insidious* onset.
• Improvement with exercise.
• No improvement with rest.
• Pain at night (with improvement on getting up).

* It started slowly: it did not come on suddenly.

ASAS Criteria (Sieper J Et al Ann Rheum Disease 2009;68:784-8)