Tendon pain behind the knee socket lumbar pain consider soft tissue injury, lumbar disc herniation, can be given general treatment, physical therapy, drug therapy, surgery and so on. 1. Soft tissue injury: long-term exertion or excessive exercise can cause lumbar and posterior knee muscle strain, resulting in local oozing, inflammatory factor aggregation, pain, rest is recommended. In the early stage of injury, local ice packs can be applied within 72 hours, and after 72 hours, hot packs, massage, physical therapy (microwave), oral non-steroidal anti-inflammatory pain medication (celecoxib capsule), generally 3-5 days of pain can be relieved. 2. Lumbar disc herniation: trauma or exertion leads to lumbar disc herniation compressing the local nerve root, causing lumbago with lower limb pain. In the acute stage, it is recommended to have absolute bed rest for at least half a month, during which oral painkillers (ibuprofen), anti-swelling medicines (dioxymin tablets), and nutritive nerve medicines (methylcobalamin tablets) should be taken. If the pain is not relieved and the throbbing pain in the lower limbs worsens, affecting daily life, surgery is recommended. For pain in the back of the knee and the lower back, active medical consultation and treatment under the guidance of a physician are recommended. Medications should be taken as prescribed by the doctor.