Is Chiropractic Safe? Risks, Side Effects & Safety

By Benjamin McCay, DC, CCSP

Published September 15, 2026

One of the most common questions about chiropractic care is also one of the most reasonable: Is it safe?

For most appropriately selected patients, chiropractic care is generally considered safe when performed by a trained, licensed provider. When reactions occur after spinal manipulation, they are usually mild and temporary, such as soreness, stiffness, or a brief increase in discomfort. Serious complications have been reported, but they appear to be extremely rare.

That does not mean every chiropractic technique is appropriate for every patient. A healthy adult with uncomplicated mechanical low back pain presents a very different risk profile from an older patient with severe osteoporosis, a person with a recent fracture, or someone developing progressive neurological symptoms. Safe treatment therefore depends on more than knowing how to perform an adjustment. It requires determining whether the patient should be treated, what should be treated, and which treatment technique is appropriate.

Chiropractic Care Is Not the Same as Spinal Manipulation

The terms chiropractic care and spinal manipulation are sometimes used as though they mean the same thing. They do not. Spinal manipulation is one treatment chiropractors may use, and it can be performed using a variety of techniques and amounts of force. Depending on the patient and condition, chiropractic care may include:

• High velocity manipulation
• Lower force manipulation (e.g. Activator)
• Joint mobilization
• Flexion-distraction
• Soft tissue treatment
• Exercise
• Structural or functional taping
• Traction or other mechanical treatment
• Activity and ergonomic recommendations
• L&I case management (i.e. Attending Provider)
• Referral to another health care provider

Even when manipulation is appropriate, the amount of force and the technique can vary substantially. A patient does not have to receive a forceful adjustment simply because he or she visits a chiropractor. In some situations, the safest treatment decision may be to use a gentler technique, avoid manipulating a particular area, obtain imaging, or not perform manipulation at all.

Furthermore, the chiropractic scope of practice varies by state. While most chiropractors focus primarily on musculoskeletal care, some states permit substantially broader practice. For example, appropriately qualified chiropractors in Oregon may perform certain minor surgical procedures or practice obstetrics. Chiropractors have also served on U.S. Olympic and Paralympic medical teams alongside physicians, physical therapists, athletic trainers, and other health professionals.

Most Common Side Effects of an Adjustment

When patients do experience a reaction following spinal manipulation, it is usually mild and temporary. This may include:

• Local soreness
• Temporary stiffness
• A brief increase in pain
• Headache
• Fatigue

When temporary soreness occurs, it can be comparable to the mild soreness some people experience after exercise or another unfamiliar physical activity. Someone beginning a new exercise program may initially notice more soreness than someone accustomed to regular activity. Similarly, a patient's response to manual treatment can vary depending on age, underlying condition, tissue sensitivity, activity level, previous injuries, and previous experience with treatment. Most patients in our clinical experience do not experience a meaningful increase in soreness after an adjustment, although a minority notice temporary mild soreness or stiffness.

Published rates of post-treatment soreness vary considerably. Studies have involved different patient populations, treatment techniques, definitions of adverse events, and methods of collecting symptoms. For these reasons, published adverse-event rates should not be interpreted as a precise estimate of what any individual patient will experience.

Mild temporary soreness is also different from substantial worsening, progressive neurological symptoms, or the development of significant new symptoms. If a patient consistently becomes worse after treatment, the appropriate response is not simply to continue performing the same adjustment. The diagnosis, treatment technique, and treatment plan should be reconsidered.

Can Serious Injuries Occur?

Yes. No health care treatment is entirely without risk. Serious complications associated with spinal manipulation have been reported, including fractures, neurological injury, worsening of certain spinal conditions, and cervical artery dissection. These complications are uncommon, and their exact incidence is difficult to determine because rare events are difficult to study and adverse-event reporting has not always been consistent.

One systematic review examining adverse-event reporting in randomized clinical trials identified 154 studies involving 7,518 participants who received spinal manipulation. No serious adverse events were reported in those trials. This does not prove that serious complications never occur. Rare events may not appear even in studies involving thousands of patients.

Consequently, the more useful clinical question is not “Can an adjustment ever cause an injury?” Almost any treatment can. A better question is “Can the provider recognize when a particular treatment creates unnecessary risk and choose something more appropriate?”

What About Neck Adjustments and Stroke?

The potential relationship between cervical manipulation and stroke is probably the most widely discussed serious safety concern involving chiropractic treatment. A cervical artery dissection occurs when a tear develops within the wall of an artery supplying blood to the brain. In some cases, a dissection can interfere with blood flow or contribute to formation of a blood clot, potentially resulting in a stroke.

Cervical artery dissections are uncommon and may occur spontaneously or in association with trauma. Rare cases have also been reported following cervical manipulation. The National Center for Complementary and Integrative Health notes an association between cervical manipulation and cervical artery dissection while also acknowledging uncertainty regarding whether manipulation actually causes these dissections.

One reason this relationship is difficult to study is that neck pain and headache may themselves be early symptoms of an arterial dissection. A person developing a spontaneous dissection may initially have little more than unusual neck pain or headache and may therefore seek care from a chiropractor, primary care physician, emergency department, massage therapist, or another provider before the vascular problem has been recognized.

Population studies have found associations between stroke and recent health care visits for neck pain or headache among both chiropractic and medical patients. Researchers have suggested that at least some of this association may occur because patients with an already developing arterial dissection seek care shortly before the stroke. These studies do not establish that cervical manipulation can never contribute to an arterial injury, but they do demonstrate that the relationship is more complicated than assuming that a neck adjustment caused a subsequent stroke simply because the two events occurred close together in time.

In other words, population studies have not found a greater risk of stroke associated with a recent chiropractic visit than with a recent visit to a primary care physician.

Because the potential consequence is serious, appropriate screening and clinical judgment remain important. New or unusual severe neck pain or headache accompanied by findings such as weakness, numbness, difficulty speaking or swallowing, loss of coordination, or sudden visual disturbance warrants urgent medical evaluation rather than routine manipulation.

When Should Spinal Manipulation Be Avoided or Modified?

There is no single list that applies identically to every manipulation technique and every patient. Some conditions make higher-force manipulation inappropriate, while others require modification of the technique, additional evaluation, or treatment of a different region. Spinal manipulation may need to be avoided, modified, or postponed when there is concern for conditions such as:

• Acute fracture
• Significant spinal instability or dislocation
• Severe osteoporosis or substantially reduced bone strength
• Spinal infection
• Malignancy involving the spine
• Spinal cord compression with myelopathy or progressive neurological impairment
• Disc or nerve-root compression associated with a progressive neurological deficit
• Cauda equina syndrome
• Suspected cervical arterial pathology
• Major recent trauma
• Connective tissue disorders associated with vascular fragility
• Recent spinal surgery
• Surgical hardware in or near the treatment region
• Conditions that may substantially weaken bone, connective tissue, or neurological structures

The important point is that a contraindication to one particular adjustment is not necessarily a contraindication to every form of chiropractic care. For example, an older patient with reduced bone density may still benefit from examination, exercise, soft tissue treatment, mobilization, or appropriately modified lower force treatment even when a more forceful manipulation might be inappropriate.

Similarly, someone with a previous spinal fusion may still develop pain arising from muscles, sacroiliac joints, hips, shoulders, or mobile portions of the spine. A fused segment should not be manipulated with the objective of restoring motion to a segment that was surgically designed not to move, but appropriately selected treatment elsewhere may still be reasonable.

Does Everyone Need X-Rays Before an Adjustment?

No. Imaging should generally be obtained when it is likely to affect diagnosis or treatment rather than simply because a patient is seeing a chiropractor. For uncomplicated mechanical neck or low back pain without significant warning signs, routine imaging is often unnecessary.

Imaging becomes more important when the history or examination raises concern for conditions such as:

• Fracture
• Significant trauma
• Progressive neurological deficit
• Infection
• Malignancy
• Spinal instability
• Significant postoperative complications
• Another condition in which imaging would change treatment

An important part of a chiropractic examination is determining when imaging is useful and when it is not.

Is Chiropractic Safe After a Car Accident?

Often, but a recently injured patient should not automatically be treated the same way as someone with uncomplicated recurrent back or neck stiffness. A motor vehicle collision can cause muscle and ligament injuries, joint injuries, disc injuries, concussion, fractures, neurological injuries, and other trauma. The first priority is therefore determining whether the patient's presentation is appropriate for conservative treatment.

The technique may also need to change during recovery. A patient who is acutely painful and guarded may initially require gentler treatment. As the injury stabilizes and movement improves, manual treatment, exercise, rehabilitation, and progressively increasing normal activity may become more appropriate. Conversely, suspected fracture, instability, significant neurological injury, or other serious trauma should be evaluated before routine manipulation is performed.

The fact that a patient was injured does not automatically make chiropractic treatment unsafe. It does mean that the injury needs to be evaluated rather than assuming that every post-accident symptom simply needs an adjustment.

How Can a Chiropractor Reduce Treatment Risk?

Much of chiropractic safety occurs before an adjustment is ever performed. A responsible evaluation should consider the patient's:

• Current symptoms
• Mechanism of injury
• Medical history
• Previous surgeries
• Neurological findings
• Relevant cardiovascular history
• Previous imaging
• Current examination findings

The chiropractor must then determine whether the suspected diagnosis fits the patient's presentation, whether treatment is appropriate, and which technique is most suitable. Safe treatment also requires continuing to reassess the patient.

A technique that was reasonable initially may need to be modified if symptoms change. New weakness, worsening neurological findings, unusual headaches, significant deterioration, or failure to improve as expected may justify additional evaluation, imaging, or referral. The ability to not perform an adjustment when an adjustment is inappropriate is part of competent chiropractic care.

Does a Chiropractic Adjustment Have to "Crack"?

No. The popping sound sometimes associated with an adjustment is generally produced by a rapid pressure change within a synovial joint. It does not mean that a bone was put back into place, and producing a louder sound does not mean that the treatment was more successful. Some effective manual techniques produce little or no audible sound.

The appropriate amount of force depends on the patient, the region being treated, the clinical objective, and the technique being used. At our clinic, the goal is not to produce the biggest adjustment possible. The goal is to use an appropriate technique and amount of force for the individual patient and clinical objective.

Should I Be Afraid to See a Chiropractor?

For most patients with uncomplicated musculoskeletal complaints, fear of chiropractic treatment is not warranted. At the same time, patients should not be told that chiropractic treatment carries absolutely no risk. The reasonable position lies between those extremes.

Spinal manipulation is a commonly used conservative treatment. Temporary soreness or stiffness can occur, while serious complications have been reported but appear to be uncommon. Certain patients should not receive particular types of manipulation, and some symptoms require medical evaluation instead of chiropractic treatment. Good chiropractic care therefore depends less on the assumption that every adjustment is inherently safe and more on appropriate diagnosis, patient selection, technique selection, reassessment, and referral when necessary.

Chiropractic Care at Advanced Chiropractic & Massage

At Advanced Chiropractic & Massage, an initial visit begins with an evaluation rather than an automatic adjustment. We assess the patient's symptoms, history, injuries, neurological and musculoskeletal findings, and relevant risk factors before determining whether chiropractic treatment is appropriate.

Treatment is then individualized. Depending on the patient, this may include spinal or extremity manipulation, lower force techniques, mobilization, soft tissue treatment, exercise, referral to physical therapy, or referral for imaging or to other medical professionals. Not every patient needs the same treatment, and not every patient needs to be adjusted.

The objective is not simply to make a joint move or produce a popping sound. The outcome that matters is whether the patient is getting better. Treatment should be selected and modified accordingly.