What Causes Upper Back and Chest Pain When Breathing?

Pain in the upper back and chest that intensifies with breathing is a common symptom. This discomfort, often described as sharp or stabbing, indicates an issue within the chest cavity or the surrounding musculoskeletal system. While simple muscle strain is a possibility, a thorough medical evaluation is necessary, as this pain can be the first sign of a serious condition affecting the lungs or heart.

Musculoskeletal and Structural Causes

Pain originating from the chest wall, ribs, and surrounding muscles is a frequent non-urgent cause of discomfort that worsens with movement and breathing. Because the rib cage must expand with every breath, it is susceptible to strain and inflammation. This pain is often localized and can be reproduced by pressing directly on the affected area.

A common structural cause is costochondritis, which is the inflammation of the cartilage that connects the ribs to the breastbone (sternum). The pain tends to be sharp or aching, most often felt on the left side of the chest, and increases significantly with deep breaths, coughing, or twisting movements. While the discomfort can be intense and mimic more severe conditions, costochondritis is a benign condition that typically improves with time and conservative treatment.

Intercostal muscle strain involves injury to the small muscles between the ribs that facilitate breathing. Forceful actions like excessive coughing, sudden twisting, or strenuous exercise can overstretch or tear these muscles, leading to sharp pain in the upper back and ribs. The pain is localized between the ribs and is aggravated by deep inspiration or a sneeze. Poor posture or misalignment in the thoracic spine can also cause discomfort by placing stress on the muscles and nerves.

Respiratory System Inflammation

Inflammation within the respiratory system often leads to pain prominent during breathing. This pain signals irritation of the protective lining of the lungs or the lung tissue itself, often due to infection. Accompanying symptoms like fever or a productive cough help distinguish these causes from simple muscle strain.

Pleurisy is a condition where the pleura, the thin membrane surrounding the lungs and lining the chest cavity, becomes inflamed. This inflammation causes the two layers of the membrane to rub against each other instead of gliding smoothly, resulting in a sharp, knife-like pain with deep breaths, coughing, or sneezing. The pain of pleurisy can spread from the chest to the shoulder or upper back, depending on the location of the irritation.

Pneumonia, an infection that causes the air sacs in the lungs to fill with fluid, can lead to back and chest pain. If the infection reaches the outer lining of the lung, it can cause pleurisy and sharp, pleuritic pain. The severe, persistent coughing associated with pneumonia also leads to significant muscle strain and soreness in the chest and back. Fever, chills, and a cough that produces colored phlegm are common indicators of this lung infection.

Bronchitis, which involves inflammation of the bronchial tubes, contributes to pain primarily through a forceful and persistent cough. The continuous, strenuous contraction of the chest and back muscles during a prolonged coughing fit causes substantial musculoskeletal soreness. This secondary muscle fatigue and soreness in the chest area can feel like a deep, aching discomfort exacerbated by breathing.

Acute and Critical Events

Certain causes of upper back and chest pain with breathing represent medical emergencies involving an acute disruption of the circulatory or pulmonary system. These conditions require immediate medical intervention due to the potential for rapid deterioration and life-threatening complications. They are often distinguished by sudden onset, severity, and the presence of systemic symptoms beyond localized pain.

A pulmonary embolism (PE) occurs when a blood clot, often originating in the leg, travels to and blocks an artery in the lungs. This blockage restricts blood flow and can cause sudden, sharp chest pain that worsens with deep inhalation. The pain can also radiate to the back and is frequently accompanied by sudden, unexplained shortness of breath, a rapid heart rate, and sometimes coughing up blood.

Pneumothorax, or a collapsed lung, results from air leaking into the space between the lung and the chest wall, causing the lung to partially or fully collapse. Symptoms include the sudden onset of sharp, one-sided chest pain and shortness of breath. Pericarditis, the inflammation of the sac surrounding the heart, also causes sharp chest pain worsened by lying down or taking a deep breath. This pain may spread to the neck or shoulder but often improves when sitting up and leaning forward.

A heart attack (myocardial infarction) can sometimes present with pain primarily in the upper back and chest, worsened by activity. Atypical cardiac symptoms, particularly in women, may include tightness or pressure radiating to the jaw, neck, or back, sometimes accompanied by sweating or lightheadedness. Aortic dissection, a tear in the body’s main artery, is a rare but catastrophic event causing sudden, severe, tearing pain in the chest or back.

Determining When to Seek Immediate Care

Any new or severe chest pain should be assessed by a medical professional, but certain “red flag” symptoms indicate a need for immediate emergency care. If the pain is sudden, crushing, or feels like a heavy pressure or squeezing sensation, it warrants an immediate emergency call, especially if the pain spreads to the arms, jaw, neck, or upper back.

Immediate intervention is necessary if the chest or back pain is accompanied by severe difficulty breathing, such as gasping or struggling to speak. Other urgent signs include:

  • A rapid or irregular heartbeat.
  • Unexplained dizziness, fainting, or loss of consciousness.
  • Pale or bluish discoloration of the lips or skin.
  • High fever or confusion.
  • Coughing up more than a few streaks of blood.