Back pain that lasts for more than three months is classified as chronic.

Acute back pain usually follows some kind of injury, often related to everyday activities such as housework, gardening, a sports-related injury, or an automobile accident. Back pain that lasts for more than three months is classified as chronic.

What Are the Symptoms?

Symptoms are often described as painful muscle aches or spasms but can include shooting or stabbing pain, limited flexibility and range of motion, or an inability to stand straight.