Low back pain, or more simply back pain, is a disorder involving the muscles and bones of the back.
It is extremely widespread and affects a very high percentage of people at some point in their lives. It is unclear whether there are differences in the incidence of low back pain between female and male sexes.
Acute low back pain lasts up to six weeks, subchronic six to 12 weeks, while durations longer than 12 weeks configure a picture of chronic low back pain.