The symptoms of lateral knee pain: 1. inflammation and damage to the lateral joint capsule, ligaments or tendons of the knee joint. 2. wear and degeneration of the lateral compartment of the knee joint, because some patients have increased stress on the lateral side of the knee joint due to the presence of knee valgus, resulting in earlier wear and degeneration. 3. early damage to the lateral meniscus of the knee joint, or damage to the cartilage, may also occur in some patients. 4. Wear and tear of the lateral patellofemoral joint surface may occur, which is mostly seen in middle-aged and elderly female patients, with some patients having an outwardly inclined and oblique patella. 5. Injury to the lateral meniscus of the knee may be the cause of pain and discomfort on the lateral side of the knee due to trauma or severe degeneration of the meniscus. 6.