Chiropractic
What Causes the Popping Sound in Chiropractic Adjustments?
Dr. Peter HinzDecember 7, 2022

What Causes the Popping Sound in Chiropractic Adjustments?
The popping sound from chiropractic adjustments stems directly from negative pressure building up in joints. This pressure comes from the accumulation of gases and fluids that lubricate body joints.
While commonly called "bone-cracking," this term is misleading. Chiropractors manipulate bones to fix subluxations—misalignments that pinch or stress spinal nerves. The popping sound confirms the adjustment is working as intended.
What Are the Causes of the Popping or Cracking During Chiropractic Treatment?
Joints are where two bones connect. The body secretes synovial fluids and gases (oxygen, nitrogen, and carbon dioxide) to keep joints functioning properly as lubricants.
When chiropractors perform manipulation techniques quickly, they create sudden negative pressure release between joints. The accumulated gaseous fluids in the joint escape, producing the distinctive popping sound.
Description of What Happens When a Chiropractor Cracks Your Back
Over time, spinal bones become misaligned naturally through wear and tear or injury. Misaligned connecting bones create a subluxation, eventually causing nerve pain from pinching or excessive pressure.
When chiropractors "crack" your back, they separate joints to reset them with proper alignment. The cracking sound comes from two connected bones suddenly separating at the joint.
Should I worry about joint "popping" being harmful? Will it eventually result in arthritis?
The popping sound poses no harm and won't increase arthritis risk—it's simply gas release from the joint. However, excessive cracking could damage ligaments in the manipulated joint.
Interestingly, popping can release endorphins in the treatment area. According to a 2011 study, this sound creates "a sense of pleasure and relief."
Can Damage be done to your back by cracking it?
Proper back-cracking causes no damage. Problems arise when the process is done incorrectly. Four primary concerns from improper back-cracking include:
- Excessive force can tear muscles
- Excessive force can pinch nerves near the spinal column
- Frequent cracking can permanently stretch ligaments, causing perpetual instability
- Excessive force can injure blood vessels, increasing future blood clot risk
Will I Need to Hear Popping/Cracking during a Chiropractic Adjustment?
You won't need to hear it, but you might want to. The sound provides reassurance that your chiropractor is performing the adjustment correctly and making progress toward treatment goals.
The sound is disturbing. Is there anything I can do?
Some people find the sound disturbing, especially on first encounter. If it bothers you, wear earplugs or listen to music during treatment. Note: You'll still feel the sensation, which cannot be eliminated.
Is it possible a chiropractic adjustment won't result in hearing cracking?
Yes. Chiropractors use many different adjustment techniques. Not all produce the popping sound. Discuss what to expect during your treatment consultation with your chiropractor.
Do All Chiropractic Adjustments Result in a "Crack" or "Pop" Sound?
No. Some techniques almost always create popping sounds while others produce no sound at all. For peace of mind, consult your chiropractor beforehand about what to expect during adjustments.
Does popping/cracking result in a better outcome of a chiropractic adjustment?
No. The sound simply indicates gas pressure release from a joint. Some adjustment types cause popping while others don't. Treatment effectiveness depends on the chiropractor's skill, not the sound.
What Is the Difference Between Back Cracking and Chiropractic Adjustment?
Back cracking is a specific chiropractic adjustment type. Chiropractic adjustment is a broader category encompassing various adjustment options. Back cracking is a subset of chiropractic adjustment.
Do chiropractors 'crack' your back during Chiropractic?
Whether your chiropractor cracks your back depends on their treatment objectives and your condition. If focusing on certain spine or body parts, back cracking might not be included. Your chiropractor will include it if they believe it aids treatment.
Is it possible to make my own back pop?
Yes. Several back-stretching methods can crack your back, but learn proper technique first. Four common methods include:
- Knee-to-chest—laying on your back, pull knees to your chest
- Lower back rotation—laying on your back with knees up, rotate hips back and forth
- Bridge stretch—with back on a horizontal surface and feet on a vertical surface, thrust pelvis upward
- Seated lower back rotation—from a sitting position with one leg extended, rotate hips and neck
You should not attempt to pop your own back
While back stretches might produce popping sounds, don't deliberately seek them. Excessive force or pressure to achieve popping could cause joint injury.
Benefits of Having a Chiropractor Crack Your Back
Chiropractors crack backs to provide patient benefits. Potential advantages include:
Better overall body functionality
Back cracking realigns the spine, enabling the entire body to function much better.
Instantaneous pain relief
For minor, intermittent pain, back cracking can relieve pain within the first treatment or two. This is enhanced by endorphin release to pleasure centers in the brain, replacing pain with pleasure.
Restoring full mobility
Misaligned spines cause loss of back flexibility, range of motion, balance, and strength, affecting mobility. Multiple adjustments eventually restore full mobility.
Lowering of stress levels
Feeling unwell increases stress susceptibility, often worsened by sleep and eating problems. Back-cracking adjustments help you feel better, lowering stress levels.
Better overall quality of life
Health directly affects overall quality of life. Addressing misaligned spines and pain improves your overall life quality. Back-cracking adjustments help restore good health.
Questions
Is chiropractic popping good?
A better word is indifferent. It's neither good nor bad—just a sound occurring during certain adjustment types.
Does the cracking at a chiropractor do anything?
It's not indicative of anything except that the chiropractor is performing their job.
What is the cracking noise in a chiropractic adjustment?
The cracking or popping noise occurs during joint adjustments. The sound represents negative pressure release caused by joint lubricant fluids and gases.
Why do chiropractors pop your neck?
Chiropractors pop necks for several reasons: improving neck mobility, relieving neck arthritis pain, and realigning neck tendons and ligaments.
What toxins are released after a chiropractic adjustment?
Toxins accumulate in joints over time. After adjustment, many toxins release. These come from air and water pollution, polychlorinated biphenyls, pesticides, flame retardants, food, and other environmental sources.
How do chiropractors know where to adjust?
Chiropractors identify adjustment targets through several methods: pressure point testing for pain and diagnostic imaging like X-rays and MRIs.
Why do chiropractors crack ears?
The most common reason is addressing clogged ear conditions caused by sinus mucus buildup. Swollen sinuses pressure the eardrum and eustachian tube. Ear cracking prompts better fluid drainage and pressure release.
Is chiropractic cracking safe?
When handled properly, back cracking is very safe with minimal risk. However, overly frequent cracking or excessive pressure can cause injury and body damage.