Definition of Back pain

1. Slideshow: Low Back Pain
2. Take the Back Pain Quiz!
3. Good and Bad Exercises for Low Back Pain

Back pain: Pain felt in the low or upper back. Causes of pain in the low and upper back include conditions affecting the bony spine; discs between the vertebrae; ligaments around the spine and discs; spinal inflammation; spinal cord and nerves; muscles; internal organs of the pelvis, chest, and abdomen; tumors; and the skin.