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Atlas · Chest

Intercostal Muscles

Sharp localized pain between ribs from intercostal trigger point activation in rib spaces

Intercostal Muscles
Body region
Chest · Mid Back
Trigger points
4
documented in this muscle
Common symptoms
18
patterns cataloged
Common causes
24
contributory factors

Illustrated overview

Intercostals · Regional source example

Right intercostal source examples: two separate anterior/lateral chest pain fields and the corresponding source markers. Travell and Simons, Fig. 45.1, p. 863. Regional illustration; not an individual map of a selected numbered point.

Open full-size image

Trigger points

1. TrP1

Location. Between ribs

Trigger point map
Intercostal Muscles — Intercostals · Trigger-point examples 1Open full-size image

Regional muscle reference; this is not an individual map of the selected numbered trigger point.

Referred pain map
Intercostal Muscles — Intercostals · Regional source exampleOpen full-size image

Regional muscle reference; this is not an individual map of the selected numbered trigger point.

Pain referral. Rib area, side of chest

Pain Pattern

  • Rib area
  • Side of chest
  • Chest
  • Upper abdomen

What This Pain Feels Like

Sharp or stabbing pain between the ribs that intensifies with deep breathing, twisting, or coughing. The pain often wraps around one side of the chest and can create a constant, uncomfortable awareness of every breath you take. It may feel like a stitch in your side that never fully resolves. This type of pain is frequently mistaken for pleurisy, costochondritis, or even cardiac pain, but it commonly originates from trigger points in the small muscles running between the ribs.

What Patients Report

  • Pain between ribs
  • Pain when breathing deeply
  • Side chest ache
  • Pain with coughing

What Makes It Worse

  • Deep breathing
  • Coughing
  • Sneezing
  • Twisting
  • Lifting
Browse related exercises (1)

Symptoms patients report

Rib pain Sharp localized pain between ribs from intercostal trigger point activation in rib spaces

Pain when breathing Inspiratory chest pain from trigger points stretching during rib cage expansion

Side chest pain Lateral thoracic wall pain from intercostal trigger points in lateral rib spaces

Pain with twisting Rotational thoracic movement stretches and compresses intercostal trigger point taut bands

Sharp pain between ribs in the back Acute intercostal aching posteriorly between adjacent ribs near the costovertebral junction

Pain with breathing Inspiratory posterior rib pain as intercostal expansion stretches taut bands between ribs

Pain with trunk rotation Posterior intercostal pain during twisting as rotation alters rib spacing mechanically

Localized tenderness between ribs Palpable point tenderness in the posterior intercostal space from active trigger point nidus

Stabbing pain with coughing Acute lancinating posterior rib pain during coughing from intercostal trigger point compression

Chest pain mimicking cardiac pain Anterior intercostal trigger points create parasternal pain indistinguishable from angina pectoris

Sternal area aching Referral concentrates near the sternocostal junctions creating deep anterior chest wall aching

Pain with deep breathing Rib expansion during inspiration stretches taut intercostal bands provoking anterior chest pain

Chest tightness Bilateral intercostal trigger points restrict rib expansion creating a sensation of chest constriction

Anxiety about chest pain Persistent anterior chest pain triggers health anxiety reinforcing psychogenic muscle tension

Sharp rib pain with breathing Lateral intercostal trigger points create sharp pain along the rib during respiratory excursion

Lateral chest wall ache Taut bands at the mid-axillary line create localized lateral chest wall aching

Pain radiating along rib Referral follows the intercostal nerve pathway from lateral to anterior along the rib course

Splinting (guarding) with breathing Sharp intercostal pain triggers protective guarding limiting rib cage excursion on the affected side

Common causes

Coughing Forceful repetitive coughing creates ballistic loading on intercostal muscles each episode

Sneezing Sudden explosive thoracic contraction overloads intercostal muscles during violent sneezing

Twisting Repetitive or forceful trunk rotation creates shearing forces across intercostal muscle fibers

Heavy lifting Breath-holding during exertion creates high intrathoracic pressures straining intercostal muscles

Shallow breathing Restricted chest wall movement creates chronic intercostal shortening and trigger point formation

Rib dysfunction Costovertebral or costochondral joint restriction alters intercostal mechanical loading patterns

Rib dysfunction or subluxation Costovertebral joint hypomobility creates compensatory intercostal overload and chronic guarding

Chronic coughing Repetitive forceful coughing overloads posterior intercostals through sustained rib compression forces

Forceful twisting Rapid trunk rotation creates shearing forces between adjacent ribs straining posterior intercostals

Heavy lifting with rotation Combined lifting and rotation loads posterior intercostals through multidirectional rib cage forces

Direct trauma Impact to the posterior rib cage directly traumatizes intercostal muscles between affected ribs

Prolonged poor posture Sustained thoracic flexion alters posterior rib spacing creating chronic intercostal tension asymmetry

Chronic cough Repetitive forceful coughing creates sustained intercostal contraction and subsequent trigger point formation

Forceful sneezing Explosive intercostal contraction during sneezing can traumatically activate anterior intercostal trigger points

Chest trauma (seatbelt injury) Seatbelt compression during deceleration injury traumatically activates anterior intercostal trigger points

Heavy bench pressing Maximal bench press loading generates high intercostal strain during rib cage stabilization

Anxiety-related hyperventilation Chronic hyperventilation overworks intercostal muscles as accessory respiratory muscles creating trigger points

Rib fracture history Healed rib fracture creates secondary intercostal guarding and persistent compensatory trigger points

Rib trauma or contusion Direct lateral rib impact traumatically activates intercostal trigger points at the contusion site

Forceful coughing (bronchitis, pneumonia) Prolonged violent coughing creates cumulative intercostal muscle damage and trigger point activation

Rowing sports Repetitive thoracic rotation during rowing stresses lateral intercostal muscles at mid-axillary line

Sleeping on one side on hard surface Sustained lateral compression of intercostal muscles against a hard surface creates ischemic trigger points

Scoliosis Spinal curvature creates asymmetric intercostal loading with concave-side shortening and trigger points

Violent sneezing Explosive intercostal contraction during violent sneezing traumatically activates lateral trigger points

Treatment & self-care

Immediate Relief

Fingertip pressure between ribs

Using your fingertips, gently press into the space between two ribs where you feel the most tenderness. Apply moderate sustained pressure for 20-30 seconds, then release. Work along the rib space from the side of your chest toward the front. Breathe slowly and steadily throughout the treatment.

Duration
3-5 minutes per session
Frequency
2-3 times per day
Expect
Possible temporary comfort; compare the same movement before and after massage.

Caution Seek urgent medical evaluation if chest pain is accompanied by shortness of breath, sweating, dizziness, or pain radiating to the arm or jaw, as these may indicate a cardiac or pulmonary emergency

Immediate Relief

Rib mobilization stretch (side-lying)

Lie on the unaffected side with a pillow under your waist. Extend the top arm overhead to open the rib spaces on the affected side. Hold for 20-30 seconds, breathing deeply to encourage rib expansion. You should feel a gentle stretch between the ribs on the upper side.

Duration
30 seconds, 3-4 repetitions
Frequency
2-3 times per day
Expect
Work toward more comfortable trunk movement; track bending or turning.

Exercises

Diaphragmatic deep breathing exercises

Lie on your back with knees bent and one hand on your chest, the other on your abdomen. Breathe in slowly through your nose, directing the breath into your belly so the lower hand rises while the upper hand stays relatively still. Exhale slowly through pursed lips. Focus on expanding the ribcage fully with each breath.

Duration
5-10 minutes per session
Frequency
3-4 times per day
Expect
Practice comfortable, unforced breathing and notice whether the movement feels easier.

Exercises

Trunk rotation exercise

Sit upright in a chair with feet flat on the floor. Cross your arms over your chest. Slowly rotate your trunk to one side as far as comfortable, hold for 5 seconds, then rotate to the other side. Keep your hips facing forward throughout. Perform the movement slowly and breathe normally.

Duration
10 repetitions each direction
Frequency
2-3 times per day
Expect
Work toward more comfortable trunk movement; track bending or turning.

Lifestyle Changes

Stress and anxiety management for breath-holding

Become aware of unconscious breath-holding during stressful moments. Set hourly reminders to check your breathing pattern. When you notice shallow breathing or breath-holding, take three slow diaphragmatic breaths. Consider progressive muscle relaxation or guided breathing apps to reduce habitual chest tension.

Duration
5-10 minutes per relaxation session
Frequency
Throughout the day, formal sessions 1-2 times daily
Expect
Practice comfortable, unforced breathing and notice whether the movement feels easier.

Professional Treatment

Professional evaluation to rule out cardiac or pulmonary causes

Consult a physician or emergency department if intercostal pain is new, severe, or accompanied by other symptoms. A thorough evaluation including physical exam, ECG, and possibly chest imaging can rule out serious causes. Once cleared, a physiotherapist can provide targeted manual therapy including rib mobilization and intercostal myofascial release.

Duration
Initial evaluation plus follow-up as recommended
Frequency
As needed; physiotherapy typically 1-2 sessions per week for 3-4 weeks
Expect
A working diagnosis and an individualized treatment plan, with progress judged by the relevant daily activity.

Caution Seek urgent medical evaluation if chest pain is accompanied by shortness of breath, sweating, or pain radiating to the arm or jaw

Immediate Relief

Side-lying rib expansion breathing

Lie on the unaffected side with a pillow under your head for comfort. Place your top hand on the painful intercostal area. Breathe in slowly through your nose, directing the breath into the hand on your ribs — you should feel the ribs gently pushing outward against your hand. Hold for 2-3 seconds at the top, then exhale slowly through pursed lips. Perform 10-15 slow breath cycles. This gently mobilizes the restricted intercostal space and encourages rib cage expansion on the affected side.

Duration
5-8 minutes per session
Frequency
3-4 times per day
Expect
Practice comfortable, unforced breathing and notice whether the movement feels easier.

Caution Rib pain accompanied by shortness of breath at rest or following trauma needs a chest X-ray to rule out rib fracture or pneumothorax before beginning breathing exercises

Immediate Relief

Foam roller thoracic mobilization

Place a foam roller horizontally on the floor and lie on it so it is positioned across the mid-back at the level of the painful ribs. Support your head with your hands and keep your knees bent with feet flat. Gently extend backward over the roller, opening the chest toward the ceiling for 3-5 seconds, then return to neutral. Roll the foam roller up or down one rib level and repeat. Perform 5-8 extensions at each level, spending extra time at the stiffest segment.

Duration
5-10 minutes per session
Frequency
1-2 times per day
Expect
Work toward more comfortable trunk movement; track bending or turning.

Exercises

Gentle trunk rotation stretches

Sit upright on a chair with feet flat on the floor. Cross your arms over your chest. Slowly rotate your trunk to one side, turning as far as comfortable without forcing. Hold the end position for 5 seconds, then return to center and rotate to the other side. Keep your hips facing forward throughout. Perform 10-12 repetitions per side. Focus on smooth, controlled movement and breathe normally — do not hold your breath during rotation.

Duration
5 minutes per session
Frequency
3-4 times per day
Expect
Work toward more comfortable trunk movement; track bending or turning.

Exercises

Rib cage mobilization with overhead reach

Stand with feet shoulder-width apart. Raise the arm on the affected side overhead and gently lean away from that side, creating a long stretch through the lateral rib cage and posterior intercostals. Hold for 15-20 seconds while breathing slowly and deeply into the stretched side. Return to upright and repeat 5-8 times. This actively opens the intercostal space on the painful side and encourages fascial release between ribs.

Duration
3-5 minutes per session
Frequency
3-4 times per day
Expect
Work toward more comfortable trunk movement; track bending or turning.

Lifestyle Changes

Avoid heavy lifting during the acute phase

Temporarily reduce or eliminate heavy lifting, carrying heavy bags, and exercises that load the rib cage (deadlifts, rows, overhead press) until the sharp intercostal pain has resolved. When you need to lift objects, keep them close to your body and avoid twisting while lifting. Substitute with lighter resistance exercises that do not provoke rib pain. Gradually reintroduce heavier loading once pain-free breathing has been maintained for at least one week.

Duration
Until acute pain resolves, typically 2-4 weeks
Frequency
Ongoing activity modification
Expect
Reduce provoked symptoms while maintaining tolerable activity; progress with the response.

Professional Treatment

Professional evaluation to rule out rib fracture or pleural pathology

If posterior rib pain persists beyond 3-4 weeks, worsens despite self-care, or is accompanied by shortness of breath, fever, or history of trauma, seek evaluation from a physiotherapist, osteopath, or physician. They can perform targeted assessment of costovertebral joint mobility, intercostal muscle integrity, and order imaging (chest X-ray) if needed. Manual therapy techniques including rib mobilization and dry needling of posterior intercostals can provide rapid relief for cases that do not respond to self-care.

Duration
Initial evaluation: 45-60 minutes
Frequency
Typically 1-2 sessions per week for 3-4 weeks
Expect
A working diagnosis and an individualized treatment plan, with progress judged by the relevant daily activity.

Caution Rib pain with shortness of breath or after trauma needs a chest X-ray to rule out fracture or pneumothorax

Differential diagnosis

  • Rib fracture
  • Pleurisy
  • Costochondritis
  • Shingles
  • Costovertebral joint dysfunction
  • Intercostal neuralgia
  • Thoracic disc herniation
  • Herpes zoster (shingles)
  • Cardiac chest pain (angina)
  • Tietze syndrome
  • Pericarditis
  • Pulmonary embolism
  • Gastroesophageal reflux
  • Slipping rib syndrome

Associated Trigger Points

Key Takeaways
  1. Sharp localized pain between ribs from intercostal trigger point activation in rib spaces
  2. Inspiratory chest pain from trigger points stretching during rib cage expansion
  3. Lateral thoracic wall pain from intercostal trigger points in lateral rib spaces
  4. Rotational thoracic movement stretches and compresses intercostal trigger point taut bands
  5. Acute intercostal aching posteriorly between adjacent ribs near the costovertebral junction