Why Does My Lower Back Hurt When I Breathe in Deep?

Lower back pain when taking a deep breath can be concerning. While often due to less severe issues, it can sometimes signal underlying conditions requiring attention. Understanding the reasons behind this pain helps determine when to seek professional advice and how to manage discomfort. This article explores common causes and provides guidance for individuals experiencing this type of back pain.

How Breathing Affects Back Pain

Breathing involves muscles and structures that impact the spine. The diaphragm, the primary muscle for inhalation, is a dome-shaped muscle below the lungs. It attaches to the lumbar spine via tendinous structures called crura, connecting to the first three lumbar vertebrae (L1-L3). As the diaphragm contracts and descends during deep inhalation, it can exert pressure or tension on the lumbar spine.

Breathing also expands the rib cage, which articulates with the thoracic spine. Intercostal muscles between the ribs facilitate this movement. These muscles contribute to trunk stability and influence spinal mechanics. Respiratory movements can stretch or compress spinal tissues, potentially aggravating existing issues or causing discomfort in the lower back.

Common Musculoskeletal Reasons

Many instances of lower back pain aggravated by deep breathing stem from musculoskeletal issues.

Muscle Strains and Spasms

Muscle strains or spasms, often involving the erector spinae or quadratus lumborum, can cause pain during deep inhalation. These strains can result from injury or overuse, leading to inflammation that radiates pain. Intercostal muscle strains, affecting muscles between the ribs, also cause sharp pain worsening with deep breathing due to tissue stretching.

Rib Joint Dysfunction

Rib joint dysfunction, involving where the ribs meet the spine, can manifest as pain with breathing. If these joints become irritated or misaligned, rib movement during respiration can cause sharp or aching pain. This pain is often felt in the mid-back but can refer to lower regions.

Lumbar Disc Issues

Lumbar disc issues, such as a herniated or bulging disc, can intensify pain with deep breaths. Increased intra-abdominal pressure during inhalation can stress spinal discs or compress nerves in the lumbar region.

Sacroiliac (SI) Joint Dysfunction

Sacroiliac (SI) joint dysfunction affects the joints connecting the sacrum to the pelvis. While less directly linked to respiratory mechanics, SI joints play a role in pelvic stability. Pain from SI joint dysfunction is typically localized to the lower back and buttocks. Certain movements or pressures associated with deep breathing could exacerbate it. These conditions generally result in localized pain reproducible with specific movements.

Other Potential Causes

Beyond musculoskeletal problems, several other conditions can cause lower back pain that worsens with deep breathing.

Kidney Issues

Kidney issues, such as kidney stones or infections like pyelonephritis, can lead to back pain, often in the flank area. This pain might be aggravated by deep breaths due to the kidneys’ proximity to back muscles and the diaphragm. Inflammation or swelling of the kidney can press against surrounding structures, causing discomfort.

Lung Conditions

Lung conditions like pleurisy, pneumonia, or a pulmonary embolism can also present with back pain exacerbated by breathing. Pleurisy, an inflammation of the lung lining, causes sharp chest pain that can radiate to the back, worsening with deep inhalation. Pneumonia, a lung infection, can cause back pain from inflammation or muscle strain due to coughing. A pulmonary embolism, a blood clot in lung arteries, can cause sharp upper back pain that worsens with deep breathing, often with shortness of breath and chest pain.

Gastrointestinal Issues

Gastrointestinal issues, including pancreatitis, appendicitis, or diverticulitis, can sometimes cause referred back pain influenced by breathing or movement. Pancreatitis, inflammation of the pancreas, can cause severe abdominal pain radiating to the back. Appendicitis typically causes lower right abdominal pain, but can cause lower back or pelvic pain. Diverticulitis, an inflammation of colon pouches, usually causes lower left abdominal pain, but this pain can radiate to the lower back.

Shingles

Shingles, caused by the varicella-zoster virus, affects nerve roots and results in a painful rash. If affected nerves are in the lower back, the pain can be sharp and intensify with movements like deep breathing.

When to Seek Professional Medical Advice

While many causes of lower back pain with deep breathing are not severe, certain accompanying symptoms indicate a need for immediate medical evaluation. Seek professional medical advice if you experience:
Sudden, severe pain that comes on abruptly or progressively worsens.
Pain accompanied by fever, chills, or night sweats, suggesting infection.
Unexplained weight loss in conjunction with back pain.
Numbness, tingling, or weakness in the legs, indicating potential nerve involvement.
Loss of bladder or bowel control (cauda equina syndrome), a medical emergency.
Pain that occurs after a trauma or injury, such as a fall or car accident.
Pain that does not improve with rest or basic home care.
A known history of cancer.

Home Care and Prevention Strategies

For mild cases of lower back pain related to breathing, several home care strategies can provide relief.

Immediate Relief

Rest and avoid activities that aggravate the pain, allowing tissues to heal.
Apply heat or ice to the affected area to manage pain and reduce inflammation. Heat relaxes muscles, while ice numbs pain and decreases swelling.
Perform gentle stretching and mobility exercises, such as cat-cow or knee-to-chest stretches, to improve spinal flexibility and alleviate muscle tension.
Consider over-the-counter pain relievers like NSAIDs or acetaminophen. Consult a pharmacist or doctor before use, especially with existing health conditions.

Prevention and Long-Term Care

Focus on good posture and ergonomic adjustments, especially during prolonged sitting or standing.
Use a chair with proper lumbar support.
Adjust desk and monitor height to maintain a neutral spine.
Take regular breaks to stand and move.
Practice stress management techniques, such as deep breathing exercises or meditation, as stress can contribute to muscle tension.
Maintain a healthy weight and engage in regular, low-impact exercise to support spinal health and prevent future pain.