What You May or May Not Hear During a Chiropractic Adjustment: Understanding the Audible Pop Sound

Dr. James Fraser | Doctor of Chiropractic

Have you ever received a chiropractic adjustment and heard a popping sound? Many patients and clinicians frequently associate this sound, often called an "audible pop", "crunch", "click", "crack", "audible release sound", "cavitation", and many more, with the success of the treatment. Most of the time, you will hear an audible release sound, but there are always exceptions, as no two patients are alike and every adjustment is specific to each patient. Some patients may not hear an audible release pop sound and still get all the benefits of a chiropractic adjustment without the sound. But what does this sound mean? As a chiropractor serving Basalt, Colorado at Spine Spot Chiropractic, I want to explain what you hear during an adjustment, whether that sound is significant, and what current research reveals about its role in pain relief and treatment effectiveness.

What Is an Audible Pop in Chiropractic Care?

An audible pop is the sound that occurs during many spinal manipulative therapy (SMT) procedures performed by chiropractors. It results from cavitation — the sudden formation of a gas cavity within the joint — as the joint surfaces rapidly separate under a quick, high-velocity thrust.

The Science Behind the Pop

Recent studies suggest that cavitation, which produces the popping sound, occurs when synovial fluid within the joint cavity experiences rapid pressure changes, leading to gas bubble formation or collapse. This process happens regardless of pain relief or patient perception, and the sound itself is not directly linked to a successful outcome, but the restoration of proper joint function has a strong correlation to favorable results. 

Does Hearing a Pop Mean the Treatment Will Reduce Pain?

Current Evidence from Research

Based on systematic reviews, including the latest research from Annelieke Cesanne Moorman and colleagues, there is no strong evidence that an audible pop correlates with better pain outcomes. Multiple studies have shown that patients tend to experience pain relief regardless of whether they hear a pop during their adjustment. Some techniques involving an activator or table-assisted adjustments may cover the pop sound. 

What Do Studies Say?

• No significant difference in pain reduction between adjustments with or without an audible pop.
• Hearing or not hearing a pop does not predict treatment success.
• In some cases, patients report pain relief even when no cavitation occurs.

What Does This Mean for Patients in Basalt, Colorado?

As your local chiropractor at Spine Spot Chiropractic in Basalt, Colorado, I emphasize that the clinical effectiveness of chiropractic care is not dependent on hearing the pop. The primary goal is to improve joint mobility, reduce muscle tension, and relieve pain, regardless of the sounds heard. But yes, most of the time you hear a pop sound, but not always. 

What You Hear During Adjustment — The Psychological and Mechanical Aspects

Patient Perception and Expectations

Many patients believe that hearing the pop signifies a successful or "better" adjustment. This expectation can influence satisfaction but doesn't necessarily correlate with pain relief or functional improvement.

The Role of the Chiropractor in Basalt, Colorado

As a chiropractor practicing in Basalt at Spine Spot Chiropractic, I educate patients that the absence of a pop does not mean the treatment was ineffective. Our focus remains on restoring proper joint function and reducing discomfort through personalized care.

Should You Be Concerned About the Pop?

No Need to Worry About Sound

Research indicates that whether or not you hear the pop, the outcome in terms of pain relief is largely unaffected. The popping sound is simply a mechanical consequence of joint adjustment, not a marker of treatment success.

Focus on the Benefits of Chiropractic Care

In Basalt, Colorado, chiropractic care at Spine Spot Chiropractic aims to:

• Improve spinal mobility
• Relieve muscle tension
• Decrease pain
• Enhance overall function

All of which contribute more importantly to your health than the sounds produced during treatment.

What You Need to Know as a Patient in Basalt, Colorado

The bottom line is that the audible pop during a chiropractic adjustment is a normal, scientifically explained phenomenon that does not determine the success of your treatment or pain relief. At Spine Spot Chiropractic in Basalt, Colorado, I prioritize evidence-based care focused on what truly matters: your health, comfort, and progress.

Ready to Experience Chiropractic Care in Basalt?

If you're curious about chiropractic adjustments and want a professional who understands the science behind the sounds, schedule an appointment with Dr. James Fraser at Spine Spot Chiropractic today. We’re here to help you achieve your health goals using effective, science-backed chiropractic techniques — sounds optional!