Diagnosing injury and illness is largely about pattern matching.
X list of symptoms = Y diagnosis, which should respond to Z treatment.
While #backpain is a complex condition with multiple causes, it is fundamentally no different.
Asking the right questions and understanding how to interpret the answers can lead to a fairly accurate and reliable understanding of someones pain.
https://backtocomfort.substack.com/p/differential-diagnosis-demystifying