Costochondritis: The Overlooked Cause of Chest Pain—and How Physical Therapy Can Help

What Is Costochondritis?

Costochondritis is an inflammatory condition affecting the cartilage where the ribs attach to the sternum (breastbone). This area, known as the costosternal joint, can become irritated and painful—often mimicking more serious conditions.

Patients commonly report:

Sharp or aching chest pain
Pain that worsens with movement, deep breathing, or coughing
Tenderness when pressing on the rib joints
Pain that may radiate to the back or shoulders

Because these symptoms overlap with cardiac or pulmonary conditions, costochondritis is often misdiagnosed—or missed entirely.

At Kickstart Physical Therapy, our goal is to empower you to function at your very best. Isn’t it time for you to Kickstart your health journey?

Trauma as a Cause (Including Car Accidents)

A motor vehicle accident (even a “minor” one) can create significant forces through the chest wall. This may lead to:

Irritation of the costosternal joints (where ribs meet the sternum)
Rib dysfunction or subtle misalignment
Soft tissue strain in the chest, neck, and upper back

Seatbelt pressure, sudden deceleration, or bracing during impact can all contribute. The tricky part is that imaging often looks normal, so the rib and cartilage irritation gets missed.

Many people don’t feel symptoms immediately—they may develop:

Chest pain days or weeks later
Pain with deep breathing, twisting, or reaching
Persistent discomfort that doesn’t respond to rest alone

Other Common Causes of Costochondritis

While trauma is a big one, there are several other contributors:

1. Repetitive Strain or Overuse

Heavy lifting
Intense upper body workouts
Sudden increase in activity

2. Poor Posture

Prolonged sitting (especially at a computer)
Rounded shoulders and forward head posture
Sustained positions that compress the chest

3. Respiratory Illness

Chronic coughing (bronchitis, lingering cold)
Repeated stress on the rib joints

4. Muscle Tightness & Imbalance

Tight chest muscles (pectorals)
Restricted thoracic spine mobility
Overactive accessory breathing muscles

5. Stress & Guarded Breathing

This is often overlooked—people under stress tend to:

Breathe shallowly
Hold tension in the chest and rib cage

Over time, that can contribute to irritation in the area.

Why Costochondritis Is Frequently Misdiagnosed

Chest pain understandably raises concern for serious issues like heart disease. While ruling out life-threatening conditions is essential, once those are excluded, many patients are left without clear answers.

Here’s why costochondritis often slips through the cracks:

1. It Mimics Serious Conditions

Symptoms can feel similar to heart attacks, anxiety, or lung conditions. Patients are often told “everything looks normal,” but the pain persists.

2. Imaging Often Appears Normal

X-rays, MRIs, and CT scans typically don’t show inflammation in the costosternal joints, leading providers to overlook a musculoskeletal source.

3. It’s Not Always Well Understood

Some providers may not fully assess the rib cage, thoracic spine, or surrounding soft tissues, which play a critical role in this condition.

4. Symptoms Can Become Chronic

Without proper treatment, costochondritis can linger for months, sometimes being mislabeled as anxiety, fibromyalgia, or “unexplained chest pain.”

The Musculoskeletal Connection and How Physical Therapy is Essential

Costochondritis is rarely just about inflammation—it’s often tied to:

Restricted rib or thoracic spine mobility
Poor posture (especially forward head and rounded shoulders)
Muscle tightness in the chest, neck, and upper back
Repetitive strain or overuse (including workouts or prolonged sitting)

This is where physical therapy becomes essential.

How Physical Therapy Can Help Costochondritis

1. Manual Therapy & Joint Mobilizations

Targeted mobilizations to the ribs and thoracic spine can:

Restore normal joint movement
Reduce stress on the costosternal joints
Improve breathing mechanics

Patients often experience relief when these areas are addressed—not just the site of pain.

2. Myofascial Release

Tight fascia and muscles in the chest (like the pectorals), upper back, and diaphragm can contribute to symptoms.

Myofascial release techniques help:

Decrease tissue tension
Improve circulation
Reduce referred pain patterns

This approach is especially helpful for patients who feel “tight,” restricted, or unable to take a deep breath.

3. Postural Correction

Poor posture places constant strain on the rib cage.

A personalized plan may include:

Postural awareness training
Strengthening of the upper back and core
Ergonomic adjustments for work and daily life

4. Breathing Retraining

Many people with costochondritis develop shallow or guarded breathing.

Therapy can:

Restore proper diaphragmatic breathing
Reduce rib cage strain
Calm the nervous system

5. Individualized Exercise Progression

Rather than avoiding movement, guided exercise helps patients safely return to activity without flare-ups.

Why Kickstart Physical Therapy Is the Right Choice for You

At Kickstart Physical Therapy, every session is one-on-one with a certified manual therapist, start to finish.

That means:

Your therapist works with only you
Hands-on manual therapy when your body needs it
Exercises tailored specifically to your movement patterns
Ongoing reassessment—not “set it and forget it”
Time to listen, educate, and problem-solve

This approach allows us to connect the dots between what hurts and why it keeps happening.

When to Seek Help

If you’ve been told your tests are “normal” but you still have:

Persistent chest pain
Pain with movement or breathing
Tenderness along your ribs

…it may be time to consider a musculoskeletal cause like costochondritis.

Costochondritis can be frustrating, especially when it goes undiagnosed or misunderstood. The good news is that with the right approach—particularly hands-on physical therapy—many people experience significant relief and return to normal activities.