γγA series of symptoms caused by a reduction in the volume of the spinal canal due to degeneration, which results in compression of the nerve and vascular structures within the spinal canal. Its clinical manifestations include hip and or lower extremity pain and or fatigue and weakness, which is aggravated by walking and relieved by bending, squatting, or lying down. The progression is slow.γγIn elderly patients, the presence of pain and or fatigue weakness in the hip and or lower extremities, aggravated after walking, and relieved after bending, squatting, or lying down has to be considered as lumbar spinal stenosis. MR is the most accurate non-invasive test for diagnosing lumbar spinal stenosis or nerve tissue compression. If MR is not possible, CT myelography is the most appropriate alternative test. The next most appropriate test is CT. There is insufficient evidence to suggest a definite link between imaging and patient symptoms. There is no evidence that medications or other conservative treatments (e.g., physical therapy, functional exercises, massage, acupuncture) are useful or not useful. Hormone injections into the epidural space via an interlaminar approach may provide short-term relief (lasting from 2 weeks to 6 months), while the long-term effects are unknown. Multiple intervertebral foraminal closure treatments (no more than 3) relieve pain or intermittent claudication for up to 3-36 months. In the absence of spinal instability, decompression alone may provide long-term efficacy.