10 Common Causes of Lower Back Pain

Recently updated

The lumbar spine is subjected to considerable stress daily, ensuring our mobility and flexibility. However, when this system malfunctions—whether due to tissue fatigue, injury, or compression—the body reacts immediately with pain. Because the causes of this discomfort are so diverse, any back pain requires a thorough medical examination and an accurate diagnosis. This article presents 10 common causes of lower back pain, which often prompt a visit to a specialist.

1. Sciatica

Sciatica is a condition caused by irritation or compression of the sciatic nerve, the longest nerve in the body. The pain is usually sharp and stabbing, radiating from the lower back to the buttock and then down the back of the leg. The affected person may experience numbness, burning, or tingling in the affected limb. Early diagnosis by a neurologist and appropriate treatment can relieve inflammation and restore normal nerve impulse transmission.

2. Herniated disc

The intervertebral discs act as shock absorbers between the vertebrae. Due to overuse or aging, the outer fibrous ring of the disc can rupture, causing the inner nucleus to protrude. This results in severe lower back pain, often aggravated by bending the back, coughing, or prolonged sitting. Treatment can range from physical therapy to surgery in complex cases.

3. Muscle tension and spasms

Excessive physical exertion, a sudden, poorly executed turn, or lifting heavy loads can cause micro-tears in the muscle fibers and ligaments of the lower back. In response to the injury, the muscles contract reflexively, creating a sensation of intense stiffness and dull ache. Most of these conditions are effectively treated with rest, moderate heat, and appropriate rehabilitation exercises.

4. Degenerative disc disease and spondylarthrosis

With age, the intervertebral discs gradually lose hydration and elasticity and decrease in height. This leads to increased wear and tear on the joints of the spine (facet joints). Patients experience chronic lower back pain, which is more intense in the morning or after prolonged sitting or sitting. A comprehensive approach, including physical therapy and lifestyle modifications, helps slow this process.

5. Spinal stenosis

Stenosis is a narrowing of the spinal canal, resulting in compression of the spinal cord and nerve roots. This condition is more common in older adults. The main symptoms are lower back pain radiating down the legs, a feeling of heaviness when walking, and pain relief when bending over.

6. Spondylolisthesis

Spondylolisthesis occurs when one vertebra slips forward relative to the vertebra below it. This misalignment creates spinal instability and can compress nerve endings. The pain usually worsens when stretching the back and during prolonged walking. To correct the posture and strengthen the muscles of the back, doctors prescribe specific exercises or the wearing of a supportive brace.

7. Scoliosis and postural disorders

The curvature of the spine disrupts the distribution of body weight. As a result, certain muscle groups and joints in the lower back are subjected to chronic overload. This causes constant back fatigue, muscle imbalances, and discomfort after prolonged standing or sitting. Prompt postural correction can prevent serious complications.

8. Kidney disease

Not all lower back pain is related to the spine. Inflammatory processes (pyelonephritis) or the presence of kidney stones often manifest as a dull or sharp pain in the lower back. Unlike back problems, this pain is not affected by changes in position and is often accompanied by an increase in body temperature or changes in urination.

9. Osteoporosis and compression fractures

Osteoporosis weakens bones and makes them porous. In older adults, this can lead to vertebral compression fractures, even from minor bumps or falls. Such a fracture causes sudden, intense pain in the lower back, a decrease in height, and changes in posture. Treatment aims to strengthen bone tissue and relieve pain. You can search for "lower back pain doctor near me" to find an experienced and qualified specialist in your area.

10. Arthritis

Inflammatory joint diseases can affect the spine and sacrum. For example, ankylosing spondylitis (Bechterew's disease) causes chronic inflammation that leads to the fusion of vertebrae. A characteristic symptom is morning stiffness in the lower back, which decreases with exercise.