Is Chiropractic Safe? An Honest Look at the Evidence

Written and reviewed by Dr. Nathan Beyerl, DC, Doctor of Chiropractic, The Bridge Chiropractic, Carlsbad.

For most people with mechanical back and neck pain, chiropractic care has a good safety record, and the most common side effect is temporary soreness that settles within a day or two.

That is the short answer. The longer answer includes some parts that are less comfortable, and this page covers those too, because if you have arrived here after reading something alarming, being reassured is not what you need. You need the actual picture.

The short answer

Major clinical guidelines for low back pain include spinal manipulation among the recommended non drug treatment options, which is a reasonable proxy for "considered safe enough to recommend" by bodies with no stake in chiropractic.

That is not the same as "risk free", and nothing that involves putting hands on a person is. What it means is that for the presentations chiropractors most commonly see, the balance of benefit and risk is reasonable, and the serious risks are rare.

What normally happens afterwards

The most common reaction to an adjustment is mild soreness, similar to how you feel the day after a new workout. It typically shows up within a few hours and settles within a day or two.

Some people also notice tiredness for the rest of the day, and some notice a short lived increase in their original symptoms before they improve. Both are common and neither usually means something has gone wrong.

Knowing this in advance prevents a lot of unnecessary alarm. If you were not warned to expect soreness and then felt sore, it is easy to conclude the treatment hurt you when it did what it usually does.

What is not expected: severe pain, new or worsening numbness or weakness, or any symptom that feels neurological rather than musculoskeletal. Those warrant contacting your practitioner promptly rather than waiting for the next appointment.

The risks that are real

There are two categories worth separating.

Common and minor. Soreness, stiffness, temporary symptom increase, tiredness. These are the overwhelming majority of adverse effects and they are self limiting.

Rare and serious. These exist and it would be dishonest to write a safety page that skipped them. In the lower back the main documented concern is worsening of a significant disc problem or, very rarely, cauda equina syndrome, which is why the red flag screening described further down matters. In the neck, the concern that generates the most discussion is cervical artery dissection, a tear in one of the arteries supplying the brain, which can lead to stroke.

That last one deserves being addressed properly rather than dismissed.

Neck pain and headache are themselves early symptoms of an artery dissection that is already in progress. That creates a genuine difficulty in interpreting the research: people in the early stages of a dissection seek care for neck pain, and some of them see a chiropractor. Research comparing chiropractic visits with primary care physician visits has found a similar association in both groups, which is difficult to explain if manipulation were causing the dissections, and is straightforward to explain if people with developing dissections are seeking care for the symptoms.

The honest position, and the one taken by the relevant cardiology and stroke bodies, is that a causal link has not been established and cannot be definitively ruled out on current evidence, and that patients should be informed of the association before cervical manipulation.

What that means for you practically: the absolute risk is very low, it is not zero, you are entitled to be told about it, and there are specific features in a history that should make any practitioner cautious about manipulating a neck at all. Which is the next section.

Who should not be adjusted, or needs the approach modified

This list is not about excluding people. Most of the conditions below mean the technique changes, or a different treatment is used, or you are referred for assessment first. The important part is that your practitioner knows.

Tell your practitioner if you have or have had:

• Osteoporosis or reduced bone density, particularly if significant or untreated
• A recent fracture, anywhere, or a history of fragility fractures
• An inflammatory arthritis such as rheumatoid arthritis or ankylosing spondylitis, especially where the neck is involved
• A vascular condition, a known aneurysm, a previous artery dissection, or a clotting disorder
• Anticoagulant medication, meaning blood thinners
• An active infection, particularly of bone or joint
• Cancer, current or past, especially where it may involve bone
• Recent surgery, particularly spinal surgery or a joint replacement
• Progressive neurological symptoms, meaning weakness, numbness or coordination changes that are getting worse
• Pregnancy, which is not a contraindication but does change positioning and technique

None of this is a reason to withhold your history. It is the reason the history exists.

Does it hurt?

Usually not. Most adjustments are quick and most people describe them as a relief rather than a pain, particularly when the joint being treated has been stiff for a while.

The popping sound worries people more than it should. It is not bone, and it is not anything breaking or realigning. It is a gas bubble forming in the fluid inside the joint as the pressure changes, the same mechanism as cracking a knuckle. A joint can be treated successfully with no sound at all, and the sound is not a measure of whether it worked.

If you are sensitive, nervous, or have had a bad experience before, say so. There are low force and instrument assisted techniques that achieve similar results without the movement or the sound, and a practitioner who insists on one method regardless of how you feel about it is not the right practitioner.

What makes care safe

More than any single technique, four things:

A proper history and examination before any treatment. This is where contraindications and red flags are found. Treatment in the first few minutes of a first visit is a warning sign.

Imaging or referral when it is indicated, and not when it is not. Routine imaging for uncomplicated back pain is not recommended by current guidelines and exposes you to radiation without changing your care. Imaging when there are red flags is a different matter entirely.

Technique matched to the person. Age, bone density, medication, anxiety, and the specific presentation should all change how someone is treated.

A practitioner who will tell you when you need someone else. The most reassuring thing any clinician can say is "this is not mine to treat".

Chiropractic and pregnancy

Pregnancy is common in chiropractic practice and it is not a barrier to care. Back and pelvic pain are among the most frequent complaints in pregnancy, and manual treatment is often a reasonable option when medication choices are limited.

What changes is the approach: positioning is adapted as pregnancy progresses, forces are lighter, and certain techniques are not used. Any practitioner treating you during pregnancy should be explicit about those modifications, and should be comfortable coordinating with your obstetric provider.

Questions worth asking before you book

• What will you do at the first visit before you treat me?
• What do you think is going on, and how confident are you?
• What are the risks of what you are proposing, for someone like me?
• What will you do differently given my history and medications?
• How many visits do you expect, and when will we review whether it is working?
• What would make you refer me to someone else?

A practitioner who welcomes these questions is demonstrating something. One who finds them irritating is also demonstrating something.

What your first visit looks like at The Bridge

Assessment first, explanation second, treatment third, in that order.

That means a history that includes your medical background and medications, an examination, and a screen for the red flags and contraindications described above. Then a plain explanation of what we think is going on. Then treatment, if treatment is appropriate, using an approach chosen for you rather than a default.

If we think you should see someone else first, we will say so, and we would rather say it at the consultation than three visits in.

The free discovery call exists for exactly this. It is 20 to 30 minutes on the phone with Dr. Beyerl, no commitment, and it is the lowest risk way to find out whether this is right for you.

Frequently Asked Questions

Is chiropractic care safe?

For most people with mechanical back and neck pain, yes, and major clinical guidelines include spinal manipulation among recommended non drug options for low back pain. The most common side effect is temporary soreness lasting a day or two. Rare serious complications exist, and the risk is not zero, which is why a proper history and examination before treatment matters and why some conditions call for a modified approach or a different treatment altogether.

Does a chiropractic adjustment hurt?

Usually not. Most people find it relieving rather than painful, particularly when a joint has been stiff. Mild soreness afterwards is common and normal. The popping sound is gas releasing in the joint fluid, not bone, and a joint can be treated effectively with no sound at all. If you are nervous or sensitive, low force and instrument assisted techniques are available, so say so before you are treated.

What are the side effects of a chiropractic adjustment?

The common ones are mild soreness or stiffness, occasional tiredness for the rest of the day, and occasionally a short lived increase in the original symptoms before improvement. These are self limiting and typically resolve within a day or two. Severe pain, or new or worsening numbness or weakness, is not expected and should prompt you to contact your practitioner promptly.

Who should not see a chiropractor?

Rather than a list of exclusions, think of it as a list of things to disclose: significant osteoporosis, recent fracture, inflammatory arthritis involving the neck, known vascular conditions or previous artery dissection, anticoagulant medication, active infection, current or past cancer, recent spinal surgery, and progressive neurological symptoms. Any of these may mean a modified technique, a different treatment, or referral for assessment first. Pregnancy is not a contraindication but does change technique.

Ask the awkward questions first

If safety is the thing holding you back, that is a good instinct and it deserves a real answer rather than reassurance. Bring the questions to a free discovery call, 20 to 30 minutes on the phone with Dr. Beyerl. Assessment comes first, you will get a straight answer about risk as it applies to you specifically, and if the answer is that you should see someone else, we will tell you.