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Safety & Trust 7 min read February 7, 2026 Written by: Dr. Erik Anderson DC*

Is Chiropractic Safe? A Balanced Look at Real Risks and Common Fears

Honest answers about what you should and shouldn't worry about

If you're considering chiropractic care for the first time, safety questions are natural. Maybe you've heard stories about neck adjustments and strokes. Maybe the cracking sounds make you nervous. Maybe you're just cautious about anyone manipulating your spine.

These concerns deserve straight answers. I won't tell you chiropractic is risk-free because no healthcare intervention is. What I will do is explain what the research actually shows, what risks are real, what conditions make treatment inadvisable, and how competent practitioners screen for safety.

Addressing the Main Fear: Stroke Risk

Let's start with the most serious concern that people have: the relationship between cervical (neck) manipulation and stroke. This is a fair question, and it deserves a nuanced answer.

Vertebral artery dissection is a rare type of stroke that can occur when the vertebral arteries in the neck are damaged. Some case reports have documented this occurring after cervical manipulation. This has led to understandable concerns about whether neck adjustments cause strokes.

Here's what large-scale research has found: people who visit chiropractors have similar rates of stroke as people who visit general practitioners for neck pain or headache. This suggests that the association may be due to patients seeking care for early symptoms of an already-occurring dissection (neck pain and headache can be initial symptoms of arterial dissection), rather than the manipulation causing the dissection.

This doesn't mean the risk is zero. It means the risk, if any, appears to be extremely low and difficult to separate from the background rate of these rare events. Estimates range from 1 in 400,000 to 1 in several million cervical manipulations, though these figures are difficult to establish precisely given that adverse events are not subject to mandatory reporting and the number of manipulations performed is estimated rather than measured. A 2024 systematic review and meta-analysis of randomized trials (Pankrath et al.) found no increased risk of mild adverse events from cervical spinal manipulation compared to control conditions. (Randomized trials are not powered to detect rare serious events; the population-based study data discussed above is the more relevant evidence base for the stroke question.)

It is worth noting that the stroke concern is specific to cervical (neck) manipulation. Thoracic and lumbar manipulation do not carry the same vascular risk profile. If you are being seen primarily for low back or mid-back pain, the stroke question is not directly relevant to your treatment.

Common Minor Side Effects

While serious adverse events are rare, minor side effects are more common and worth understanding:

• Temporary soreness. Research suggests around 30-50% of patients experience some local soreness after manipulation, similar to after a workout. This typically resolves within 24-48 hours, particularly after the first few sessions.
• Stiffness. Some temporary stiffness in the treated area is common initially.
• Tiredness. Some people feel fatigued after treatment, particularly after their first session.
• Headache. Occasional headache following treatment, usually mild and temporary.
• Transient dizziness. Brief, mild lightheadedness in the first few minutes after cervical treatment is a common and typically transient response. This is different from the sudden or persistent dizziness described in the warning signs section below. If dizziness comes on suddenly, is severe, or is accompanied by any other symptoms, treat it as a warning sign.

These are typically short-lived and self-limiting. They're considered normal responses, not complications.

Who Shouldn't Receive Chiropractic Care

There are certain conditions where spinal manipulation is contraindicated (should not be performed). A competent chiropractor screens for these before treating anyone:

Absolute Contraindications

Situations where manipulation should never be performed:

• Bone cancer or bone infections in the spine
• Acute fractures or dislocations
• Spinal cord compression with neurological signs
• Cauda equina syndrome
• Acute disc herniation with progressive neurological deficit (rapidly worsening arm or leg weakness)
• Severe osteoporosis with fracture risk
• Known vertebral artery aneurysm or vertebrobasilar insufficiency
• Unstable upper cervical spine conditions, including atlantoaxial instability (present in Down syndrome, certain connective tissue disorders, and RA affecting C1-C2), dens fractures, and post-traumatic ligamentous instability
• Active inflammatory arthritis affecting the spine (during acute flares)

Relative Contraindications

Situations requiring modification or caution:

• Moderate osteoporosis (may require gentler techniques)
• Anticoagulant therapy (increased bruising risk)
• Connective tissue disorders with joint hyperlaxity (such as Ehlers-Danlos syndrome or Marfan syndrome)
• Recent spinal surgery
• Inflammatory arthritis (between flares)
• Pregnancy (cervical manipulation specifically requires additional assessment)
• Uncontrolled hypertension

For more on warning signs that require medical evaluation rather than chiropractic care, see the guide to back pain.

How I Screen for Safety

Safe practice begins with thorough screening. Here's what should happen before any treatment:

Medical History

A proper intake should ask about previous injuries, surgeries, medical conditions, medications, and family history of conditions that might affect treatment safety. Specific questions about cardiovascular risk factors, bleeding disorders, and bone health are essential. If your presentation includes both neck pain and recurring headaches, mention this specifically: it is relevant to the vascular screening component of the assessment.

Physical Examination

Before treatment, a practitioner should examine you. This includes assessing range of motion, neurological screening, and tests appropriate to your presentation. For cervical treatment, screening for signs of vascular compromise is standard practice. While screening can identify clear contraindications, it cannot fully predict individual risk for rare events. Thorough history-taking about prior neck trauma, vascular conditions, and current symptoms remains the most important safety tool.

Clinical Reasoning

The practitioner should be able to explain what they think is going on, why they're recommending treatment, and what results to expect. If something doesn't fit the pattern of a condition appropriate for chiropractic care, they should refer you for further evaluation.

Options for Nervous Patients

If you're apprehensive about the cracking sounds or forceful adjustments, you should know that many alternative approaches exist:

• Mobilisation. Gentle, oscillating movements that don't produce the "crack." Evidence generally suggests mobilisation produces comparable outcomes to manipulation for many common presentations of neck and back pain, so choosing a gentler approach doesn't mean accepting less effective treatment.
• Low-force techniques. Instrument-assisted methods that use spring-loaded devices to deliver gentle, controlled forces.
• Soft tissue work. Muscle release techniques that don't involve spinal manipulation.
• Exercise and movement approaches. Some practitioners focus primarily on movement retraining and exercise prescription.

A patient-centred practitioner should discuss your concerns and adapt their approach accordingly. You should never feel forced into a technique you're uncomfortable with.

Warning Signs to Watch For

After cervical manipulation, the following symptoms require immediate emergency care. Call 995 or go to the nearest A&E immediately if any of these occur:

• Sudden severe headache, especially if unlike any headache you have had before
• Dizziness, loss of balance, or difficulty walking
• Visual disturbance (double vision, blurred vision, loss of vision)
• Numbness or weakness in the face, arm, or leg
• Difficulty speaking or swallowing

These symptoms can indicate a vascular event and should be treated as a medical emergency. Minor temporary soreness or stiffness is not in this category; see the side effects section above for what is normal.

The Cracking Sound

Many people are unnerved by the popping or cracking sounds that often accompany spinal adjustments. A brief explanation: the sound is not bones grinding or cracking. It's called cavitation and occurs when a joint is moved quickly, causing a rapid drop in pressure inside the joint that forms a gas-filled space within the fluid. Research using real-time MRI has shown the sound accompanies the formation of that space, not the collapse of pre-existing bubbles.

The sound doesn't indicate whether the treatment was effective. Some effective techniques produce no sound at all. If the sound bothers you, mention it to your practitioner.

Questions to Ask Your Practitioner

Before receiving treatment, consider asking:

• "What are the specific risks for my condition?"
• "Are there any contraindications based on my history?"
• "What symptoms after treatment should prompt me to contact you?"
• "Are there gentler approaches available if I prefer?"
• "What makes you confident this is appropriate for me?"

You are entitled to ask these questions before treatment. A straightforward conversation about risks, screening, and alternatives should be easy to have, and the answers should satisfy you before you proceed.

Putting Risk in Perspective

Every healthcare intervention carries some risk. The question is always whether the potential benefits outweigh the risks for your specific situation.

For context, common interventions like NSAIDs (ibuprofen, naproxen) carry measurable risks of gastrointestinal bleeding, kidney problems, and cardiovascular events. Opioids carry addiction and overdose risks. Even doing nothing carries risks if it means living with untreated pain that affects your activity, sleep, and quality of life.

Chiropractic care, when appropriately delivered to properly screened patients, has a favourable safety profile compared to many alternatives for musculoskeletal pain. Major clinical guidelines, including the American College of Physicians (2017) and NICE (UK, 2016), include spinal manipulation as one of several recommended non-pharmacological options for low back pain, alongside exercise, heat, and massage. For neck pain specifically, manual therapy including manipulation and mobilisation is similarly recognised as one of several evidence-supported management options in clinical practice guidelines for neck pain (Blanpied et al., 2017).

For information on what vascular screening involves and what I check before treating neck pain, see the neck pain page. If you have questions about practitioner qualifications, see Chiropractic Credentials in Singapore.

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