Low back soreness for several years could be lumbar muscle strain, but not absolutely. There are many causes of back pain for several years, lumbar muscle strain may be one of the causes, but it may also be a herniated disc, female menopause, etc.. Lumbar muscle strain is due to long-term stooping work, or work posture is not normal, or forced to be in a special position, do the work of greater strength, often occurring minor injuries gradually accumulated. Lumbar muscle strain can be relieved by changing the bad posture so that the back pain is relieved, but it can also be aggravated by the bad posture and the condition of back pain can be repeated for several years. Herniated intervertebral discs compressing the spinal nerves, and changes in hormone levels during menopause may also trigger low back pain. If you are suffering from low back pain for several years, you should go to a regular hospital in time to have your doctor determine the specific cause of your back pain based on your symptoms, signs and auxiliary examinations.