The term “thoracic outlet” describes an area at the base of your neck, just above your collarbone. Important nerves and vessels pass through this outlet on their way into your arm. Compression of these tissues causes a condition called “thoracic outlet syndrome” which results in pain, numbness, or tingling in your arm.

Several factors can cause Thoracic Outlet Syndrome, often referred to as TOS. Sometimes TOS is caused by tightness in the muscles of your neck and chest, other times the space between your first rib and collarbone is too small. People who have an extra rib (cervical rib) and people who have recently suffered a neck injury may have a greater chance of having this problem.

The condition is aggravated by poor posture and by occupations that promote “slouching,” i.e., computer users, assembly line workers, supermarket checkers, and students. Swimmers, volleyball players, tennis players, baseball pitchers, and occupations requiring prolonged overhead activity. i.e., electricians and painters are also candidates for TOS.

Symptoms of TOS include arm pain, numbness, tingling, and possible weakness. Neck, arm, and hand pain may begin slowly and are often aggravated by elevation of the arms or excessive head movement. Loss of grip strength is possible.

You should avoid carrying heavy loads, especially on your shoulder i.e., carpet rolls. Briefcases, laptop cases, or heavy shoulder bags should be lightened. Bra straps may need additional padding or consideration of replacement with a sports bra.

Conservative treatment, like the kind we provide, is typically effective at treating TOS.


Credit: Information on this page provided by ChiroUp.

How We Treat Thoracic Outlet Syndrome at Ashworth Chiropractic

Thoracic Outlet Syndrome can be frustrating—especially when pain, tingling, or weakness in your arm seems to come and go without warning.

At Ashworth Chiropractic in West Des Moines, we understand that no two cases are alike. That’s why we take a comprehensive, team-based approach to care.

By combining chiropractic, massage therapy, acupuncture, and physical therapy, we’re able to address the root causes of TOS from multiple angles and help you get lasting relief.

Chiropractic adjustments are a key part of effective treatment for Thoracic Outlet Syndrome—especially when misalignment of the neck, upper back, or first rib contributes to nerve or blood vessel compression.

At Ashworth Chiropractic, we use gentle, targeted techniques to improve posture, restore joint mobility, and reduce pressure around the thoracic outlet.

Here’s how chiropractic care can help relieve TOS symptoms:

  • Improves alignment of the cervical spine and upper ribs to reduce pressure on nerves and blood vessels

  • Enhances posture, helping prevent compression during overhead activity or prolonged sitting

  • Restores joint mobility, particularly in the neck and upper back

  • Creates more space in the thoracic outlet, reducing numbness, tingling, and weakness

  • Supports long-term nerve function and circulation

By realigning the spine and rib cage, we help create more space for the nerves and vessels passing from your neck into your arm—easing symptoms like numbness, tingling, and arm weakness.

Many of our West Des Moines patients experience noticeable relief and improved function after a series of personalized adjustments.

For many Thoracic Outlet Syndrome cases, tight muscles are a major part of the problem—especially the scalenes, pectoralis minor, and surrounding soft tissue in the neck and chest. That’s why massage therapy plays an important role in reducing compression and restoring healthy movement.

Our licensed massage therapists in West Des Moines apply focused techniques to ease soft tissue tension and improve circulation in the areas where nerves and blood vessels are commonly compressed.

This hands-on care not only eases pain, but also supports better posture and mobility, making other treatments more effective. Here’s how massage therapy can help with TOS:

  • Releases tight neck and chest muscles that contribute to nerve compression

  • Improves circulation in the thoracic outlet and shoulder region

  • Reduces inflammation and swelling that may worsen symptoms

  • Relieves pain and stiffness, especially after repetitive or overhead activity

  • Prepares the body for chiropractic or physical therapy by loosening key muscle groups

Whether your symptoms stem from poor posture, repetitive motion, or athletic strain, massage therapy can be a powerful tool for long-term relief and recovery.

Acupuncture is another valuable tool in our integrated approach to treating Thoracic Outlet Syndrome.

By targeting specific points along the body’s energy pathways, acupuncture helps reduce nerve irritation, ease muscle tension, and promote natural healing—without medication or invasive procedures.

At Ashworth Chiropractic in West Des Moines, we use acupuncture to support nervous system balance and relieve symptoms like pain, tingling, and tightness.

It works especially well alongside chiropractic and massage by calming inflamed tissues and improving blood flow in the affected areas. Here’s how acupuncture can support TOS recovery:

  • Reduces nerve irritation and calms overactive pain signals

  • Improves circulation around the thoracic outlet and upper extremities

  • Decreases muscle tightness in the neck, chest, and shoulders

  • Promotes relaxation, helping the body respond better to other treatments

  • Encourages the body’s natural healing processes without side effects

For patients looking for a gentle, effective therapy to complement hands-on care, acupuncture offers a holistic path to relief.

Physical therapy helps rebuild strength, mobility, and control in the muscles surrounding your neck, shoulders, and upper spine.. For Thoracic Outlet Syndrome, this is essential—especially when poor posture, muscle imbalances, or repetitive strain are contributing to nerve compression.

At our West Des Moines clinic, we develop personalized exercise plans that help correct movement patterns, improve shoulder positioning, and reduce pressure on the thoracic outlet.

These rehab-focused sessions not only treat current symptoms but also help prevent them from coming back. Here’s how physical therapy supports recovery from TOS:

  • Strengthens postural and shoulder muscles, especially around the scapula

  • Enhances mobility and stretch capacity in the neck, chest, and upper spine

  • Corrects movement patterns that contribute to compression and discomfort

  • Builds endurance for everyday activities and overhead work

  • Reduces the risk of symptom recurrence through long-term postural control

By addressing the root mechanics of TOS, physical therapy empowers you to stay active and symptom-free—at work, at home, or on the field.

Thoracic Outlet Syndrome can affect your daily life in frustrating ways—but you don’t have to manage it alone.

At Ashworth Chiropractic, our West Des Moines providers take an integrated approach—blending chiropractic, massage, acupuncture, and physical therapy to manage the underlying causes of Thoracic Outlet Syndrome and help you heal with lasting results.

Whether your discomfort is mild or severely limiting, we’re here to build a care plan that’s right for you.

Anatomical illustration of Thoracic Outlet Syndrome showing compressed cervical nerves between the scalene and pectoralis muscles near the first rib – Ashworth Chiropractic, West Des Moines

Your Path to Wellness Begins Here!

Our experts in chiropractic, physical therapy, acupuncture, and massage therapy work as a team to provide holistic care that meets your specific needs. Book your appointment today and experience coordinated care.

Dr. Matthew squeezed me in on short notice and took very good care of me. He was very thorough and didn’t just adjust me and let me walk out. Amazing experience here and the receptionist is a sweetheart.

Vanessa V., via Google
Very professional and in depth consultation. These people seem to genuinely care about people’s health and progress.
Laura, via citysearch.com
Dr. Matt has done wonders for me and I recommend him highly – I can’t say enough good things about him. Dr. Matt and staff are good people and will take great care of you.
Steve Q., via Google
I really love it here! They are very friendly and I feel Dr. Wilson is giving me great treatment! I also don’t feel pressured into coming back too frequently. The adjustments are great! Great office!
Amy, via demandforce
My family have used chiropractic and physical therapy services here and every one of us have had excellent outcomes. I wouldn’t go anywhere else these folks are as good as it gets.
Robert A., via Google
Dr. Matt and the entire staff have been GREAT! I went in for some issues I was having with my neck and back and Dr. Matt also helped me with some other issues I was having with my calf and shoulders that have made a HUGE improvement in my overall health and comfort.

I highly recommend using Dr. Matt!

Tyler, via Facebook