This pain is often difficult to isolate and identify, as its symptoms mimic that of various other conditions. Thus, a careful physical examination, which is combined with diagnostic injections, is usually utilized to properly identify SI joint pain. Other conditions that have similar symptoms include disc herniation, sciatica, and facet syndrome.
In the physical examination, the doctor will have the patient move the SI joint in various ways to see if they can recreate the pain. If they are able to do so and no other conditions related to those movements can be surmised, then chances are the problem is associated with the SI joint.
After that preliminary diagnosis, injections may be utilized in order to numb the joint. If, after receiving the injections, the pain recedes, then the conclusion would be that the SI joint is causing the pain.