Cervical stenosis occurs when the spinal canal narrows and compresses the spinal cord and is most frequently caused by aging. The discs in the spine that separate and cushion vertebrae may dry out. As a result, the space between the vertebrae shrinks, and the discs lose their ability to act as shock absorbers. At the same time, the bones and ligaments that make up the spine become less pliable and thicken. These changes result in a narrowing of the spinal canal. In addition, the degenerative changes associated with cervical stenosis can affect the vertebrae by contributing to the growth of bone spurs that compress the nerve roots. Mild stenosis can be treated conservatively for extended periods of time as long as the symptoms are restricted to neck pain. Severe stenosis requires referral to a neurosurgeon.
Some chiropractors oppose vaccination and water fluoridation, which are common public health practices.[32] Within the chiropractic community there are significant disagreements about vaccination, one of the most cost-effective public health interventions available.[221] Most chiropractic writings on vaccination focus on its negative aspects,[27] claiming that it is hazardous, ineffective, and unnecessary.[28] Some chiropractors have embraced vaccination, but a significant portion of the profession rejects it, as original chiropractic philosophy traces diseases to causes in the spine and states that vaccines interfere with healing.[28] The extent to which anti-vaccination views perpetuate the current chiropractic profession is uncertain.[27] The American Chiropractic Association and the International Chiropractors Association support individual exemptions to compulsory vaccination laws, and a 1995 survey of U.S. chiropractors found that about a third believed there was no scientific proof that immunization prevents disease.[28] The Canadian Chiropractic Association supports vaccination;[27] a survey in Alberta in 2002 found that 25% of chiropractors advised patients for, and 27% against, vaccinating themselves or their children.[222]

There is a wide range of ways to measure treatment outcomes.[91] Chiropractic care, like all medical treatment, benefits from the placebo response.[92] It is difficult to construct a trustworthy placebo for clinical trials of spinal manipulative therapy (SMT), as experts often disagree about whether a proposed placebo actually has no effect.[93] The efficacy of maintenance care in chiropractic is unknown.[12]
Chiropractic doctors diagnose and treat patients whose health problems are associated with the body’s muscular, nervous and skeletal systems. Chiropractors believe that interference with these systems can impair normal functioning, cause pain and lower resistance to disease. They are most well known for the hands-on technique they practice to adjust imbalances in the patient’s skeletal system, particularly the spine.
D. D. Palmer founded chiropractic in the 1890s,[23] after saying he received it from "the other world",[24] and his son B. J. Palmer helped to expand it in the early 20th century.[23] Throughout its history, chiropractic has been controversial.[25][26] Despite the overwhelming evidence that vaccination is an effective public health intervention, among chiropractors there are significant disagreements over the subject,[27] which has led to negative impacts on both public vaccination and mainstream acceptance of chiropractic.[28] The American Medical Association called chiropractic an "unscientific cult" in 1966[29] and boycotted it until losing an antitrust case in 1987.[21] Chiropractic has had a strong political base and sustained demand for services; in recent decades, it has gained more legitimacy and greater acceptance among conventional physicians and health plans in the United States.[21]

All treatment is based on an accurate diagnosis of your back pain. The chiropractor should be well informed regarding your medical history, including ongoing medical conditions, current medications, traumatic/surgical history, and lifestyle factors. Although rare, there have been cases in which treatment worsened a herniated or slipped disc, or neck manipulation resulted spinal cord injury. To be safe, always check with your medical doctor to make sure your condition will benefit from chiropractic or other pain relief alternatives.