What Are the Symptoms of Lumbar Bursitis?

Common symptoms of lumbar bursitis include localized swelling and pain in the lower back, restricted lumbar mobility, marked tenderness upon palpation, lumbar-paraspinal muscle spasm, and localized swelling due to fluid accumulation. If symptoms such as radiating numbness or weakness in the lower limbs, or abnormal bowel or bladder function occur, prompt medical evaluation and treatment are strongly recommended.

1. Localized swelling and pain in the lower back: Following inflammatory hyperemia of the bursa, persistent distending pain develops in the lumbar and dorsal regions. Discomfort intensifies after bending, twisting, or prolonged sitting, and partially subsides with supine rest. Pain is typically localized to the soft tissues surrounding the lumbar vertebrae.

2. Restricted lumbar mobility: Inflammatory stimulation impairs normal flexion, extension, and rotation of the lumbar spine. The body instinctively avoids postures that provoke pain, thereby interfering with daily activities—such as bending to pick up objects or turning while standing—and resulting in varying degrees of reduced range of motion.

3. Marked tenderness upon palpation: Applying pressure to the cutaneous projection corresponding to the affected bursa elicits pronounced pain. The tender point remains relatively fixed without widespread radiation; firm pressure may transiently exacerbate the underlying distending pain.

4. Lumbar-paraspinal muscle spasm: Local inflammation stimulates adjacent lumbar and paraspinal musculature, causing muscular tension and rigidity. Palpation reveals hardened, taut muscles; sustained spasm may secondarily induce fatigue, soreness, and aching in the lumbar and dorsal regions.

5. Localized swelling due to fluid accumulation: Progressive inflammatory exudation within the bursa leads to fluid accumulation. A subtle, localized bulge may be palpable in the lumbar-dorsal region, with the overlying soft tissue feeling softer than surrounding areas. As fluid volume increases, load-bearing capacity of the lumbar spine further declines.

In daily life, select a seat cushion of moderate firmness and avoid maintaining a flexed-lumbar posture for extended periods. Protect the lumbar and dorsal regions from cold exposure, perform gentle stretching exercises for the lumbar-paraspinal muscles, limit heavy lifting or excessive lumbar loading, monitor changes in lumbar pain, and take steps to reduce recurrent inflammation.