Sternum Tenderness – What It Means and How to Manage It
What is Sternum Tenderness?
Sternum tenderness refers to pain, soreness, or discomfort that can be felt when pressure is applied to the breastbone (sternum). The sternum is a flat bone located in the center of the chest, connecting the rib cage and protecting vital organs such as the heart and great vessels. Tenderness may be localized (felt at a single spot) or diffuse (felt across a larger area) and can range from a mild ache to sharp, stabbing pain.
Because the sternum sits behind the skin, muscles, and cartilage, many different structures can refer pain to this area, making it important to consider the full clinical picture.
Common Causes
Below are the most frequently encountered conditions that can cause sternum tenderness. Each entry includes a brief description and typical situation in which it arises.
- Costochondritis – Inflammation of the cartilage that connects the ribs to the sternum (the costosternal junction). Often triggered by repetitive strain, viral infection, or a sudden upper‑body movement.
- Traumatic injury – Direct blows, motor‑vehicle accidents, or falls can fracture or bruise the sternum.
- Muscle strain – Overuse of the pectoral or intercostal muscles (e.g., weight‑lifting, rowing) can cause referred pain to the sternum.
- Gastroesophageal reflux disease (GERD) – Acid reflux can irritate the esophagus, producing a burning sensation that may be felt behind the breastbone.
- Herpes zoster (shingles) – Reactivation of the varicella‑zoster virus can involve the intercostal nerves, causing a painful rash that may start as tenderness over the sternum.
- Pericarditis – Inflammation of the pericardial sac surrounding the heart often presents with sharp, central chest pain that worsens when lying down.
- Anterior myocardial infarction (heart attack) – Though less common than left‑sided chest pain, some heart attacks present with central chest pressure that can be perceived as sternum tenderness.
- Thoracic outlet syndrome – Compression of nerves or vessels between the clavicle and first rib may produce aching in the upper chest.
- Breast or lung cancer – Tumors that invade the chest wall or ribs can cause persistent, localized tenderness.
- Infectious osteomyelitis – Bacterial infection of the sternum (rare) typically follows surgery or penetrating trauma.
Associated Symptoms
Patients with sternum tenderness often notice other signs that help narrow down the underlying cause. Common associated symptoms include:
- Sharp or stabbing pain that worsens with deep breathing, coughing, or movement
- Swelling, redness, or warmth over the sternum
- Rash or blisters (suggesting shingles)
- Difficulty swallowing or a sour taste (GERD)
- Fever, chills, or night sweats (infection or inflammatory conditions)
- Palpitations, shortness of breath, or dizziness (cardiac involvement)
- Radiating pain to the neck, back, shoulders, or arms
- Recent trauma, heavy lifting, or vigorous exercise
When to See a Doctor
While many cases of sternum tenderness are benign and self‑limiting, prompt medical evaluation is essential when any of the following occur:
- Chest pain that is sudden, severe, or accompanied by shortness of breath
- Fever > 100.4 °F (38 °C) or chills
- Persistent pain lasting more than 2–3 weeks despite rest and OTC measures
- Recent trauma with swelling or deformity of the chest wall
- New or worsening difficulty swallowing, hoarseness, or persistent heartburn
- Palpitations, light‑headedness, or syncope (possible cardiac cause)
- Rash, especially vesicular lesions following a dermatomal pattern
- History of cancer, recent surgery, or immunosuppression
These signs may indicate a serious underlying condition that requires urgent assessment.
Diagnosis
Diagnosing the cause of sternum tenderness involves a stepwise approach that combines a thorough history, physical examination, and targeted investigations.
1. Clinical History
- Onset, duration, and character of pain (sharp, dull, burning)
- Exacerbating/relieving factors (movement, breathing, meals)
- Recent injuries, heavy lifting, or sports activities
- Associated gastrointestinal or cardiac symptoms
- Medication use (e.g., anticoagulants, NSAIDs)
- Past medical history (GERD, asthma, autoimmune disease, cancer)
2. Physical Examination
- Inspection for swelling, bruising, or skin changes
- Palpation of the sternum and costosternal joints to localize tenderness
- Assessment of chest wall movement and reproducibility of pain with deep breaths
- Cardiac and pulmonary auscultation to rule out heart or lung pathology
- Neurological exam if shingles or nerve compression is suspected
3. Laboratory Tests (selected based on suspicion)
- Complete blood count (CBC) – detects infection or inflammation
- Erythrocyte sedimentation rate (ESR) or C‑reactive protein (CRP) – markers of inflammatory disease
- Cardiac enzymes (troponin) – if myocardial infarction is a concern
- Basic metabolic panel – for overall health baseline
4. Imaging Studies
- Chest X‑ray – first‑line to identify fractures, lung pathology, or mediastinal widening.
- Computed tomography (CT) scan – provides detailed view of bone, cartilage, and soft tissue; useful for trauma or suspected tumor.
- Magnetic resonance imaging (MRI) – best for evaluating soft‑tissue inflammation, infection, or pericardial disease.
- Ultrasound – can assess superficial soft‑tissue swelling or guide aspiration of fluid collections.
5. Specialized Tests
- Electrocardiogram (ECG) – rule out acute coronary syndrome or pericarditis.
- Upper endoscopy or pH monitoring – when GERD is strongly suspected.
- Viral studies or PCR for herpes zoster if a rash is present.
Treatment Options
Treatment is tailored to the underlying cause. Below are general strategies for the most common etiologies.
1. Costochondritis
- Non‑steroidal anti‑inflammatory drugs (NSAIDs) such as ibuprofen 400‑600 mg 3–4 times daily for 1‑2 weeks.
- Heat or cold packs applied for 15‑20 minutes, several times a day.
- Gentle stretching of the chest wall and pectoral muscles.
- Physical therapy focusing on posture correction and core strengthening.
2. Muscular Strain
- Rest and avoidance of heavy lifting for 3‑5 days.
- Acetaminophen or NSAIDs for pain control.
- Gradual re‑introduction of activity with a guided exercise program.
3. GERD‑related Pain
- Lifestyle modifications: elevate head of bed, avoid large meals, limit caffeine, alcohol, and acidic foods.
- Over‑the‑counter antacids or H2 blockers (ranitidine, famotidine).
- Proton‑pump inhibitors (omeprazole, lansoprazole) for 8‑12 weeks if symptoms persist.
4. Herpes Zoster
- Antiviral therapy (acyclovir, valacyclovir, or famciclovir) started within 72 hours of rash onset.
- Pain control with NSAIDs, gabapentin, or lidocaine patches.
- Cool compresses and calamine lotion for itching.
5. Pericarditis
- High‑dose NSAIDs (ibuprofen 600‑800 mg every 6 hours) for 1‑2 weeks, then taper.
- Colchicine 0.5 mg twice daily for 3 months reduces recurrence.
- Hospital admission if hemodynamic compromise or tamponade is suspected.
6. Cardiac Causes (e.g., MI)
- Immediate emergency care – call 911.
- Administration of aspirin, nitroglycerin, and reperfusion therapy per ACLS guidelines.
7. Trauma‑related Fracture
- Analgesia with NSAIDs or acetaminophen.
- Chest binder or supportive vest in selected cases (under physician direction).
- Surgical fixation if displacement or respiratory compromise is present.
8. Infection (osteomyelitis, abscess)
- Empiric IV antibiotics tailored to culture results (e.g., vancomycin + ceftriaxone).
- Drainage of abscesses via percutaneous or surgical approach.
- Long‑term oral antibiotics for 4‑6 weeks after IV therapy.
9. Cancer‑related Pain
- Oncologic evaluation (biopsy, staging imaging).
- Pain management with WHO analgesic ladder, including opioids if needed.
- Radiation or surgical resection when appropriate.
Prevention Tips
Although some causes (e.g., trauma) are unpredictable, many risk factors are modifiable.
- Maintain good posture while sitting, standing, and lifting to reduce stress on the costosternal joints.
- Strengthen core and chest muscles with regular, balanced exercise; avoid sudden, heavy overhead lifts without proper conditioning.
- Protect yourself during high‑impact sports by wearing appropriate chest protectors.
- Limit acid‑reflux triggers – avoid late‑night meals, caffeine, spicy foods, and tobacco.
- Manage stress – chronic stress can exacerbate GERD and musculoskeletal tension.
- Vaccinate against shingles (Shingrix) for adults > 50 years to reduce the risk of herpes zoster involving the chest wall.
- Seek timely treatment for respiratory infections to lower the chance of post‑infectious costochondritis.
Emergency Warning Signs
If you experience any of the following, seek emergency medical care (call 911 or go to the nearest emergency department) immediately:
- Sudden, severe chest pain that radiates to the arm, jaw, or back
- Shortness of breath, wheezing, or difficulty speaking
- Palpitations or fainting episodes
- Chest pain accompanied by profuse sweating, nausea, or vomiting
- Signs of shock: pale, clammy skin, rapid weak pulse, or confusion
- Visible deformity or open wound over the sternum after trauma
- High fever (> 102 °F/38.9 °C) with chills and severe chest pain
Sources: Mayo Clinic, CDC, National Institutes of Health (NIH), Cleveland Clinic, American Heart Association, UpToDate, WHO.
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