What red flags raise concern for spinal infection or tumor in a patient with back pain?

What red flags raise concern for spinal infection or tumor in a patient with back pain?

• A. Night pain or constant pain that worsens at night, fever, weight loss, history of cancer, persistent neurological deficits.
• B. Pain that improves with rest and NSAIDs; no fever.
• C. Pain that begins after an exercise injury.
• D. No red flags present.

Answer: (B)

Recognizing red flags in back pain points toward serious spinal pathology such as infection or tumor. The presence of night pain or constant pain that worsens at night, fever, weight loss, a history of cancer, and persistent neurological deficits are the warning signs. Night pain stands out because many benign back pains don’t keep you awake or worsen at night; fever signals an infectious process; unexplained weight loss suggests a systemic problem; a cancer history raises the risk of metastasis to the spine; and ongoing neurological deficits indicate a mass effect or direct invasion affecting the spinal cord or nerve roots. When these red flags are present, urgent evaluation with imaging and specialist assessment is warranted. Patterns like pain that improves with rest and NSAIDs, no fever, or pain after a minor exercise injury are more typical of non-serious, mechanical causes and do not point as strongly to infection or tumor. Absence of red flags does not completely rule out serious issues, but the red-flag pattern is the key clue for potential spinal infection or tumor.