Chiropractors diagnose, treat and prevent mechanical disorders of the musculoskeletal system and the effects of these disorders on the function of the nervous system and general health.Spinal manipulation is the main treatment used by chiropractors. It is a therapy that involves using the hands to move a joint beyond its usual range of motion. Manual pressure is applied to the spine using different techniques, and some movements may give an audible crack or pop. Chiropractors in Australia are nationally registered and regulated healthcare professionals. Chiropractic is a drug and surgery free modality of treatment concerned with the diagnosis, management and prevention of mechanical disorders of the musculoskeletal system; this includes the effects of these disorders on the function of the nervous system and general health. Some chiropractors also claim to treat non-musculoskeletal problems, such as ear infections, asthma, allergies, colic in babies and bedwetting. Source: The theory behind spinal manipulation being that proper alignment of the spine will allow the body to return to its natural state by relaxing the muscles of the affected area and often without surgery or medication. Joints and the spine can go out of alignment as a result of a fall or lack of proper support when working. Manipulation of the joints help to release stress that builds up allowing for healing to take place. To start the process the Chiropractor may start with a full medical history followed by diagnostic tests and imaging to check on the problem area to make an informed decision prior to physical examination and manipulation of the area. The goals of chiropractic care include the restoration of function and prevention of injury in addition to back pain relief.