Muscle or spine damage and nerve damage, including sciatica, can also cause pain. Lower left side back pain in females can be caused by pregnancy-related changes, fibromyalgia, and other conditions.

Middle back pain on your left side that lasts more than a week should be diagnosed by your healthcare provider. Treatments ...

The incidence of right-sided colon cancers has increased since the 1980s, while the incidence of left-sided colon cancers has decreased. Numerous hypotheses have been proposed to explain this ...