A few cancers in their early stages can be hard to tell apart from ordinary back pain — a bone cancer in the vertebrae, for instance — and these create a frustrating diagnostic problem. They are too rare for doctors to inflict cancer testing on every low back pain patient “just in case.” And yet the possibility cannot be dismissed, either! It’s an unsolveable problem.
A sedentary lifestyle can lead to having weak and tight hip flexors as they are always in the shortened position. Tight hip flexors can lead to a limited range of motion, poor posture, lower back, and hip pain, and even injuries. These muscles need to get a workout when you are standing and doing movements such as raising your leg to climb stairs, run, or ride a bicycle. 
Mechanical pain. By far the most common cause of lower back pain, mechanical pain (axial pain) is pain primarily from the muscles, ligaments, joints (facet joints, sacroiliac joints), or bones in and around the spine. This type of pain tends to be localized to the lower back, buttocks, and sometimes the top of the legs. It is usually influenced by loading the spine and may feel different based on motion (forward/backward/twisting), activity, standing, sitting, or resting.
Start kneeling on your mat with knees hip-width apart and hips directly over knees. Press your shins and the tops of your feet into the mat. Bring your hands to your low back, fingers pointing down, and rest palms above glutes. Inhale and lift your chest, and then slowly start to lean your torso back. From here, bring your right hand to rest on your right heel and then your left hand to your left heel. (If you can't reach your heels, turn your toes under; it will be easier to reach your heels in this modification.) Press your thighs forward so they are perpendicular to the floor. Keep your head in a relatively neutral position or, if it doesn't strain your neck, drop it back. Hold for 30 seconds. To come out of the pose, bring your hands to your hips and slowly, leading with your chest, lift your torso as you press the thighs down toward the floor.
Spinal fusion eliminates motion between vertebral segments. It is an option when motion is the source of pain. For example, your doctor may recommend spinal fusion if you have spinal instability, a curvature (scoliosis), or severe degeneration of one or more of your disks. The theory is that if the painful spine segments do not move, they should not hurt.
Lie on your back with your knees bent and your feet flat on the floor. Tighten your buttocks and lift your hips off the floor. Tighten your abdominal muscles and lift one foot a couple of inches off the floor. Then put it down and lift the other foot a couple of inches, all while remembering to breathe. “It’s like taking alternate steps,” Pariser says. Work up to doing 30 steps at a time.
A healthy diet is important for a number of reasons when you have lower back pain. First, eating well can help you maintain a healthy weight. Excess weight puts extra strain on your lower back, adding to your pain. Second, a diet that’s high in key nutrients can help promote bone growth and keep your bones strong. These must-have nutrients include:
Exercise therapy is effective in decreasing pain and improving function for those with chronic low back pain.[50] It also appears to reduce recurrence rates for as long as six months after the completion of program[61] and improves long-term function.[57] There is no evidence that one particular type of exercise therapy is more effective than another.[62] The Alexander technique appears useful for chronic back pain,[63] and there is tentative evidence to support the use of yoga.[64] Transcutaneous electrical nerve stimulation (TENS) has not been found to be effective in chronic low back pain.[65] Evidence for the use of shoe insoles as a treatment is inconclusive.[51] Peripheral nerve stimulation, a minimally-invasive procedure, may be useful in cases of chronic low back pain that do not respond to other measures, although the evidence supporting it is not conclusive, and it is not effective for pain that radiates into the leg.[66]
^ Chou R, Loeser JD, Owens DK, Rosenquist RW, Atlas SJ, Baisden J, Carragee EJ, Grabois M, Murphy DR, Resnick DK, Stanos SP, Shaffer WO, Wall EM, American Pain Society Low Back Pain Guideline Panel (2009). "Interventional therapies, surgery, and interdisciplinary rehabilitation for low back pain: An evidence-based clinical practice guideline from the American Pain Society". Spine. 34 (10): 1066–77. doi:10.1097/BRS.0b013e3181a1390d. PMID 19363457.
Squats. Using a squat machine will strengthen your quadriceps muscles on the front of your thigh and the hamstring muscles on the back of your thigh, both of which attach to your hip and give it support. The squat machine may be vertical, in which case you’ll start in a standing position and bend your knees until your thighs are parallel to the floor, or it may be on a sliding incline board.
The hip flexors play an important role in everyday mobility and exercise. Involved in pulling the knee toward the hip, most movements either directly or indirectly use the hip flexors. That’s why even the slightest injury can cause great discomfort. Learn how you can recover from a hip flexor injury, and what precautions can be taken to avoid them.
