A grade 1 meniscus injury signaling a small amount of fluid accumulation for two weeks is usually not serious. Because a grade 1 meniscus injury with a small amount of effusion buildup usually takes six to eight weeks to heal, there is no need to worry too much. Meniscal injuries are generally categorized into three grades, with grade 1 being the mildest and grade 3 being the most severe. Each grade of injury may have a joint effusion, but the amount of effusion will be different, and the range of motion of the joint will be affected, with clinical symptoms such as joint pain. Grade 1 meniscus injuries generally do not require special treatment, and can be treated with rest or external immobilization to promote fluid absorption, and can also be used for meniscus repair. If the swelling and pain are obvious, local physical therapy, hot compresses can be given to improve blood circulation, or oral blood circulation and pain medication for targeted treatment. After the meniscus injury should pay attention to keep warm, avoid the cold lead to vascular spasm around the knee joint; also prohibit spicy and stimulating food; medication needs to be under the guidance of the doctor.