Medicine – Causes of Pleuritic Chest Pain

Pleuritic chest pain is a sharp, stabbing chest pain that is typically worse on inspiration, coughing, sneezing, or movement. It usually occurs when the parietal pleura or another pain-sensitive thoracic structure becomes inflamed or irritated.

The most important initial task is to distinguish benign musculoskeletal causes from potentially serious conditions such as pulmonary embolism, pneumothorax, pneumonia, or pericarditis.

1. Pleurisy

Pleurisy means inflammation of the pleura.

When the inflamed pleural surfaces rub against each other during breathing, the patient develops sharp inspiratory chest pain.

A pleural friction rub may sometimes be heard on auscultation.

Pleurisy is not a single diagnosis in itself; it may occur secondary to infection, pulmonary embolism, autoimmune disease, or other pleural disorders.

2. Pneumonia

Pneumonia can cause pleuritic pain when inflammation extends from the lung parenchyma to the adjacent pleural surface.

The pain is often associated with fever, cough, sputum production, dyspnoea, and focal chest signs.

The pleuritic pain is therefore caused by accompanying pleuritis rather than by the lung tissue itself.

3. Pulmonary Embolism

Pulmonary embolism (PE) is an important and potentially life-threatening cause of pleuritic chest pain.

The pain is often sudden and results from irritation of the pleura by a peripheral pulmonary infarct or inflammatory reaction.

Associated features may include sudden breathlessness, tachycardia, haemoptysis, hypoxaemia, syncope, or signs of deep-vein thrombosis.

A normal chest examination does not exclude PE.

4. Pneumothorax

A pneumothorax occurs when air enters the pleural cavity and causes partial or complete lung collapse.

It classically produces sudden unilateral pleuritic chest pain and acute breathlessness.

Examination may show reduced chest expansion, hyperresonance, and diminished breath sounds on the affected side.

A tension pneumothorax is a medical emergency because increasing intrathoracic pressure can impair venous return and cause cardiovascular collapse.

5. Rib Fracture

A rib fracture causes localized chest-wall pain that is typically worsened by deep inspiration, coughing, or movement.

There is often a history of trauma, although fractures can also occur after severe coughing, particularly in older adults or patients with osteoporosis.

The pain is usually reproducible with direct palpation over the affected rib.

6. Costochondritis

Costochondritis is inflammation of the costochondral or costosternal junctions.

It causes localized anterior chest pain that can mimic pleuritic or cardiac pain.

A useful feature is that the pain is often reproducible by pressing over the affected costochondral junctions.

Unlike true pleural disease, there is no underlying abnormality of the lung or pleura.

7. Pleural Effusion

A pleural effusion can cause pleuritic chest pain, particularly during the early inflammatory phase when the pleural surfaces are irritated.

As the effusion enlarges and physically separates the two pleural surfaces, the pleuritic pain may actually become less prominent.

Large effusions may instead cause progressive breathlessness, reduced breath sounds, and stony dullness to percussion.

8. Pericarditis

Acute pericarditis commonly causes sharp, pleuritic-type central chest pain.

The pain is often worse on inspiration and when lying flat, and may improve when the patient sits forward.

A pericardial friction rub may be present.

Because pericarditis can resemble pleuritic pulmonary pain, associated ECG changes and the clinical context are important.

9. Muscular Chest Pain

Muscular chest-wall pain may occur after exercise, coughing, lifting, trauma, or repetitive movement.

The pain is usually worsened by movement of the chest wall and can often be reproduced by palpation or resisted muscle contraction.

This helps distinguish it from many intrathoracic causes.

Causes of Pleuritic Chest Pain – Note Form

Pleurisy: inflammation of the pleura causing sharp pain on inspiration.

Pneumonia: pleural irritation adjacent to infected lung produces pleuritic pain.

Pulmonary embolism: sudden pleuritic pain, often with breathlessness, tachycardia, or haemoptysis.

Pneumothorax: sudden unilateral pleuritic pain with acute dyspnoea.

Rib fracture: localized pain after trauma or coughing, worsened by breathing and reproducible on palpation.

Costochondritis: localized costosternal pain reproducible by pressure over the chest wall.

Pleural effusion: may cause pleuritic pain early, with breathlessness if the effusion is large.

Pericarditis: sharp pain worse on inspiration or lying flat and often relieved by sitting forward.

Muscular chest pain: movement-related and usually reproducible on examination.

Key Clinical Pattern

Think of pleuritic chest pain as:

Sharp pain + worse with inspiration or cough.

The main serious causes to exclude early are:

Pulmonary embolism, pneumothorax, pneumonia, and pericarditis.

Pain that is reproducible with palpation or movement is more suggestive of a musculoskeletal cause such as rib injury, costochondritis, or muscular strain, although this finding alone does not completely exclude more serious disease.