It is sometimes difficult to differentiate from a facet syndrome or disc herniation. This is the most commonly misdiagnosed back problem, usually called a muscle pull. Herniated discs are brought on by a sudden movement, often lifting, on top of general wear and tear and may cause severe pain in the back and legs. It takes quite a while to build up and may take quite a while to get better. Muscle and Ligament Strain is most often caused by poor posture or an old untreated back injury.
Symptoms are chronic backaches with occasional spasms.