What Causes Back Pain And When to See a Doctor Back pain is among the most reported health complaints globally. At least once in life, most people deal with back pain. Sometimes the pain is mild, yet for others it grows so intense that daily functioning, sleeping, and movement suffer. https://www.diigo.com/item/note/ari1n/g5pb?k=235abe714c2c1b9890793e5fac265ed5