When to see a doctor

In rare cases, back pain can signal a serious medical problem. See a doctor immediately if your back pain:

• feels constant or intense, especially at night
• spreads down one or both legs
• causes weakness numbness or tingling in one or both legs
• causes new bowel or bladder problems
• is associated with abdominal pain or pulsation (throbbing)
• is the result of a fall or blow to your back
• is accompanied by unexplained weight loss.

Also see your doctor if you're older than age 50 or have a history of back pain or cancer.