Why Does My Chest Hurt When I Breathe? Causes and Warning Signs

Chest pain that worsens with breathing — medically called pleuritic chest pain — is a common concern that sends many people to emergency departments. While the symptom can feel frightening, most causes are treatable and non-life-threatening. Common Causes of Chest Pain When Breathing Costochondritis is the most frequent cause. This inflammation of the cartilage connecting ribs to the breastbone produces sharp, localized pain that intensifies with deep breaths or coughing. It often follows physical strain or respiratory illness and typically resolves within weeks. Pleurisy occurs when the pleura (the membrane surrounding the lungs) becomes inflamed, usually due to viral infection. The pain is characteristically sharp, stabbing, and worse during inhalation. Muscle strain from coughing, exercise, or awkward sleeping positions can cause chest wall pain that mimics more serious conditions. Pneumonia and bronchitis can cause chest discomfort during breathing, especially when accompanied by fever, productive cough, and fatigue. Anxiety and panic attacks can cause chest tightness and a sensation of not being able to take a full breath, often accompanied by rapid heartbeat and tingling. When to Seek Emergency Care Call emergency services immediately if chest pain is accompanied by: crushing pressure or squeezing sensation, pain radiating to the jaw, left arm, or back, sudden shortness of breath at rest, coughing up blood, or dizziness and fainting. These may indicate pulmonary embolism, heart attack, or pneumothorax — all medical emergencies.