Arthritis of the lumbar spine, also known as lumbar osteoarthritis, is a degenerative condition affecting the lower back. This condition involves the gradual wear and tear of the cartilage between the vertebrae, leading to pain, stiffness, and reduced mobility. Common symptoms include chronic lower back pain, discomfort during movement, and potential radiating pain into the legs. Risk factors include aging, obesity, previous spine injuries, and genetic predisposition. While there is no cure, effective management through physical therapy, medications, lifestyle modifications, and, in severe cases, surgical intervention can significantly improve quality of life.