Before printing a list of diagnoses that chiropractic treats it would first be beneficial to state that chiropractors only treat joints, muscles and soft tissue. The reason I wish to make this clear is that many problems can be caused by failure or dysfunction of these systems. So it would be futile to publish a long list of things without first stating that many diagnosable entities such as tennis elbow, headache or sciatica are probably the culmination of a series of failures that have never been properly addressed and it is only when they have become a recognisable problem that they end up on the chiropractors couch.
In other words if you have a pain in your back or your buttock and it goes maybe it will come back in years to come but by then it will be a bigger problem than it originally was.