BACK PAIN INFORMATION
Back Pain Types and Diagnosis
Back pain is usually defined as pain localized in the Cervical, Thoracic, Lumbar, or Pelvic region of the back; and it can be classified as “specific” (suspected pathological cause) or “non-specific” (about 90% of cases). A back pain episode is considered acute if it lasts less than six weeks; subacute if the duration is between six weeks and three months; and chronic when it persists for more than three months. Frequent episodes are described as recurrent back pain. Recurrent and acute back pain episodes affect 20–44% of persons in the working population annually, with lifetime recurrences of up to 85%.
The Cost and Prevalence of Back Pain
Back pain is the second most common cause of disability in adults from the USA and a common reason for lost work days. An estimated 149 million days of work per year are lost because of back pain. The condition is costly, with total costs estimated to be between $100 and $200 billion annually, two-thirds of which are due to decreased wages and productivity. The Incidence and prevalence of back pain is very common, but varies according to the definitions used and the population studied. New episodes are twice as common in people with a history of back pain. Lifetime prevalence is 58–84% and the point prevalence (proportion of population studied that are suffering back pain at a particular point of time) range is 4–33%.
The Often-Overlooked Cause of Back Pain
Most back pain does not have a known cause and is often labeled as “mechanical” or “nonspecific.” However, one frequently overlooked source is the bone itself. The vertebrae are living structures, and changes within them can generate pain that is often misattributed to discs or muscles.
One example is Modic changes—alterations in vertebral bone marrow seen on MRI—present in a large portion of patients with chronic low back pain. These changes reflect inflammation or structural disruption within the bone and are increasingly recognized as a true pain source.
Bone-related pain can also result from reduced bone strength. In individuals with low bone mass or osteoporosis, minor stress can lead to vertebral compression fractures, which may cause persistent, diffuse back pain.
Unlike soft tissue pain, bone pain is often deeper, more constant, and harder to localize—making it easy to miss, but important to recognize.