Knee popping needs to be identified and treated according to the cause. Knee popping may be physiological factors, or it may be a symptom of certain diseases, such as local injury, local inflammation and so on. 1. Physiological factors: If there is a ringing sound when the patient moves the knee joint, but there is no pain, activity dysfunction and other clinical symptoms, it may be the physiological ringing of the knee joint, which is a normal phenomenon, and does not require special treatment. 2. Pathological factors (1) Localized injury: if the pain occurs when popping, most of the patients have a history of trauma, and need to carry out the corresponding examination, including MRI of the knee joint, etc., which may be combined with meniscus injuries, the patient needs to be braked and rested, and at the same time, under the guidance of the doctor to take anti-inflammatory and analgesic anti-inflammatory drugs, such as ibuprofen, etc., and serious cases need surgical treatment. (2) Arthritis: It may be related to knee arthritis, and may be combined with osteoarthritis of the knee joint for older patients. The probability of knee popping episodes increases, especially when riding a bicycle, the knee joint carries out reciprocal flexion and extension movements, and knee popping can occur frequently. You can take anti-inflammatory and analgesic drugs, such as ibuprofen tablets, or inject sodium vitrate into the joint cavity as prescribed by the doctor, and surgery is needed for serious cases. In daily life, we should pay attention to the need to warm up before exercise, pay attention to the protection of the knee joint, exercise, and avoid external impact damage to the knee joint. If knee popping is difficult to be relieved and combined with other discomforts, you should consult a doctor in time to get a clear diagnosis and follow the doctor’s instructions.