Back pain is an emergency when it comes with weakness or numbness in both legs, lost feeling around the genitals or anus, or bladder and bowel changes - that is cauda equina syndrome: call an ambulance and do not drive yourself.
Other same-day patterns: back pain after major trauma, with fever or recent infection, severe unrelenting night pain with a cancer history, or pain tearing through to the chest or abdomen. Everything else - the lifting tweak, the thrown-out back, sciatica down one leg - is miserable but not an emergency, and most back pain improves within a few weeks with gentle movement over bed rest. Pymander is a free AI doctor, 24/7 by text, and can check your symptoms against these red flags.
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Common questions
When is back pain an emergency?
Back pain becomes an emergency in one specific pattern above all: cauda equina syndrome, where the nerve bundle at the base of the spine is being crushed. The signs: pain, tingling, weakness, or numbness in BOTH legs; loss of feeling around your genitals, anus, or inner thighs; and changes in bladder or bowel control - difficulty peeing, loss of sensation while peeing, or incontinence. That combination means call an ambulance, and do not drive yourself. Other same-day patterns: back pain after major trauma like a car accident or a fall from height; back pain with fever, chills, or recent infection (possible spinal infection); severe unrelenting night pain with a history of cancer; and back pain tearing through to the abdomen or chest (possible aortic problem). Everything else - the thrown-out back, the lifting tweak, the sciatica down one leg - is miserable but not an emergency, and most back pain improves on its own within a few weeks with gentle movement rather than bed rest. Pymander is a free AI doctor, 24/7 by text, that can check your symptoms against these exact red flags.