(backache) Acute or chronic pain located in the posterior regions of the thorax, lumbosacral region, or the adjacent regions.

An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the back.

If you've ever groaned, "Oh, my aching back!", you are not alone. Back pain is one of the most common medical problems, affecting 8 out of 10 people at some point during their lives. Back pain can range from a dull, constant ache to a sudden, sharp pain. Acute back pain comes on suddenly and usually lasts from a few days to a few weeks. Back pain is called chronic if it lasts for more than three months. Most back pain goes away on its own, though it may take awhile. Taking over-the-counter pain relievers and resting can help. However, staying in bed for more than 1 or 2 days can make it worse. If your back pain is severe or doesn't improve after three days, you should call your health care provider. You should also get medical attention if you have back pain following an injury. Treatment for back pain depends on what kind of pain you have, and what is causing it. It may include hot or cold packs, exercise, medicines, injections, complementary treatments, and sometimes surgery. NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

Painful sensation in the back region.

A disorder characterized by a sensation of marked discomfort in the back region.

Back pain is one of the most common reasons people go to the doctor or miss work, and it is a leading cause of disability worldwide. Back pain can range from a muscle aching to a shooting, burning or stabbing sensation. In addition, the pain may radiate down your leg or worsen with bending, twisting, lifting, standing or walking.

Back pain, discomfort or sometimes debilitating suffering associated with an injury or some other affliction of the back, the posterior (rear) portion of the body that extends from the shoulders to the hips. Back pain is a ubiquitous complaint and a leading cause of disability worldwide. To...