What Causes Upper Back Pain Radiating to the Chest?

Upper back pain that extends into the chest, especially when resting, is a common and often unsettling symptom. While frequently stemming from non-serious origins, understanding its nature and potential sources can provide clarity. This article explores the characteristics of this pain and its common associations.

Characterizing the Pain

Upper back pain radiating to the chest originates between the shoulder blades and spreads towards the front of the body, often felt in the sternum or rib cage. This pain can manifest as a sharp jolt, a dull ache, or a burning sensation. The trigger of lying down often indicates that changes in body position or pressure points influence the pain.

When lying down, spinal alignment shifts, altering pressure on intervertebral discs, facet joints, and surrounding muscles. This position can also relax muscles, potentially increasing nerve compression. Diaphragmatic position changes can also influence thoracic spine and rib cage mechanics, contributing to discomfort. Radiating pain follows a nerve pathway from its origin, while referred pain is felt in an area distant from the source due to shared nerve connections.

Common Back-Related Causes

Muscular strain or spasm in the upper back is a frequent cause of pain that can extend to the chest. Poor posture, repetitive movements, or sudden injuries can lead to tightness and inflammation in the thoracic paraspinal muscles. These strained muscles can then refer pain signals forward along the intercostal nerves, creating chest discomfort.

Issues within the thoracic spine itself can also contribute to this radiating pain. Facet joint dysfunction, where the small joints connecting vertebrae become irritated, can cause localized back pain that spreads along the rib cage. A thoracic disc herniation can impinge on a nerve root, leading to sharp, band-like pain that wraps around to the chest. Degenerative changes, such as osteoarthritis, can similarly lead to chronic inflammation and nerve irritation.

Dysfunction of the rib joints, specifically the costovertebral and costotransverse joints where the ribs attach to the spine, is another common culprit. Inflammation or misalignment in these joints can cause localized back pain that intensifies with movement or deep breaths. This sharp pain frequently radiates along the path of the affected rib, presenting as chest pain.

Other Possible Conditions

While musculoskeletal issues are often the primary cause, other conditions can also present with upper back pain radiating to the chest. Gastrointestinal issues, for instance, can mimic chest pain due to shared nerve pathways. Conditions like gastroesophageal reflux disease (GERD) or esophageal spasms can cause burning chest pain, which might occasionally extend to the upper back. Gallstones can also refer pain to the right upper back and chest.

Cardiac considerations, though less typical for pain exclusively when lying down, warrant attention due to their seriousness. Angina, caused by reduced blood flow to the heart, can manifest as chest pressure or pain that radiates to the back, arm, or jaw. A heart attack can also present with similar symptoms, often accompanied by shortness of breath, sweating, or dizziness. It is important to note that while upper back pain radiating to the chest is rarely cardiac in origin when specifically triggered by lying down, these accompanying symptoms necessitate immediate medical evaluation.

Pulmonary issues, affecting the lungs or their surrounding structures, can also cause chest pain that radiates to the back. Pleurisy, an inflammation of the lining around the lungs, typically causes sharp chest pain that worsens with deep breaths or coughing and can be felt in the back. Pneumonia, a lung infection, can similarly lead to chest discomfort and back pain due to inflammation. Additionally, shingles, caused by the varicella-zoster virus, can cause intense nerve pain in the back and chest before the characteristic rash appears.

Seeking Professional Guidance and Relief

If upper back pain radiating to the chest is severe, persistent, or accompanied by other concerning symptoms, professional medical evaluation is important. Red-flag symptoms requiring immediate attention include shortness of breath, dizziness, excessive sweating, numbness or tingling in the limbs, or any weakness. Changes in bowel or bladder function, unexplained weight loss, or fever alongside the pain also warrant urgent medical consultation. These symptoms can indicate more serious underlying conditions requiring prompt diagnosis.

A doctor will begin with a thorough medical history and physical examination to understand the pain and identify potential sources. Depending on the suspected cause, diagnostic tests such as X-rays, magnetic resonance imaging (MRI), or blood tests may be ordered to visualize the spine, check for inflammation, or assess organ function. This approach helps pinpoint the exact origin of the pain, guiding an effective treatment plan.

While awaiting diagnosis, some self-care measures can offer temporary relief. Proper pillow support and adjusting sleeping positions can sometimes alleviate discomfort by reducing pressure on the spine and ribs. Gentle stretching exercises, applying heat or cold packs, and over-the-counter pain relievers can also provide symptomatic relief. These measures are for comfort and should not replace professional medical advice for persistent or worsening pain.