6 months after meniscus surgery still hurts to find out the cause, specifically can take drug therapy such as non-steroidal anti-inflammatory drugs, physical therapy such as ultrasound, general treatment such as reducing the weight of the knee joint and stress, etc., if necessary, also need to carry out arthroscopic re-operation to explore. 1. Drug treatment: such as non-steroidal anti-inflammatory and analgesic drug Celecoxib can be used to reduce the local inflammatory reaction and pain, if there is cartilage wear and tear with the nutrition of articular cartilage drugs for treatment, such as glucosamine sulfate. 2. Physiotherapy: Infrared ray, ultrasound and hot compresses can help to reduce the local inflammatory reaction and relieve the pain. 3. General treatment: pay attention to keep warm, reduce the weight and force of the knee joint, avoid climbing stairs and mountains and excessive walking, etc. Meanwhile, appropriate functional exercises, such as straight leg raising, etc., which can enhance the strength of the muscles around the knee joint, help to maintain the stability of the knee joint, and reduce pain. 4. Surgery: If the pain is more intense, there is obvious swelling and obvious pain when the knee joint is not loaded, and the conservative treatment does not relieve it for a period of time, then arthroscopic surgery is needed again if necessary. Meniscus surgery 6 months after the pain, generally rehabilitation measures are not in place and excessive stress on the knee joint, if it is difficult to relieve, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, for the cause of the treatment.