To begin, a little more information would be very helpful. Have you noticed the pain radiate downwards towards your buttocks or down your legs? Does the pain get worse when standing, sitting or laying flat? If you bend forward, such as on a shopping cart, do you notice any change in the pain? Have you had any trauma to your lower back? These questions would be very helpful when discussing this with your medical professional.
There are many causes for back pain, and some are related to the muscles surrounding your low back and some are related to the nerves as they travel within your lower spine and exit from small openings in the bone along the side of your spine. It is recommended that you be evaluated by your primary care doctor
who can better assess your medical history and presenting symptoms and decide upon the appropriate work up.
This may include lab tests, or imaging studies and possibly even a referral to a specialist depending on what is found. Treatment options vary and can start with more conservative management options like physical therapy, massage, and epidural injections. Surgical interventions are only considered if imaging studies show a pathology that is treatable and correlates with your symptoms.