Knee clicking can be caused by physiological factors, patellofemoral osteoarthritis, meniscus injury and other factors, and can be treated with general therapy, physical therapy, medication and surgery. 1. Physiological factors: part of the knee walking clicking can be caused by physiological factors, mainly due to the knee joint bones and tendons in the occurrence of flexion and extension movements caused by friction with each other, need to pay attention to the change of posture when the leg movements gently, and under the guidance of the doctor to strengthen the knee joint exercise. 2. Patellofemoral arthritis: long-term climbing, squatting, cycling and other activities, due to repeated flexion and extension of the knee joint action, can lead to patellar wear and tear, patellofemoral arthritis. Need to pay attention to reduce knee flexion and extension activities, you can regular hospitals, local hot compresses, massage, acupuncture and other treatments to accelerate joint blood circulation, promote the absorption of inflammation, but also follow the doctor’s instructions for the application of analgesic and anti-inflammatory drugs such as Celebrex, chondroitin sulfate and other nutritive articular cartilage drugs. 3. Meniscus injury: due to trauma or sports injuries, resulting in meniscus injury, meniscus injury can occur in the knee joint activities, popping performance, can also be accompanied by knee interlocking symptoms. Acute injuries can be treated with cold compresses to reduce bleeding and pain, and bed rest is needed to avoid knee activities. The person with interlocked joints needs to carry out knee activities under the guidance of the doctor to help restore its form and function, and the meniscus needs to be surgically resected or repaired when the damage is serious. When the knee walking clicks, you need to consult a doctor in time, after clarifying the condition, follow the doctor’s instructions to actively carry out the appropriate treatment, which will help to alleviate the symptoms of knee discomfort as soon as possible.