Fluid accumulation 8 months after meniscus surgery, we should first visit the doctor to determine the fluid accumulation, and the doctor will choose the treatment according to the patient’s own conditions and severity. If the amount of fluid is small, general treatment, medication or physical therapy can be chosen. However, if the amount of fluid is large or accompanied by redness and swelling, surgical treatment should be chosen. 1. General treatment: a small amount of effusion is mostly normal, patients should avoid overwork, cold, standing for a long time, should be appropriate bed rest, eat a balanced diet. 2. Medication: Oral medication such as Mai Zhi Ling tablets, non-steroidal anti-inflammatory drugs such as Celecoxib, and nutritional cartilage drugs such as Glucosamine Sulfate can prevent further deterioration of the condition to a large extent. 3. Physiotherapy: It can be supplemented by local hot compresses, electric physiotherapy, acupuncture and massage, etc. It requires clinicians to assist patients to complete, which can promote blood circulation, accelerate the metabolism, and facilitate the absorption of fluid, reduce the symptoms of swelling and pain in the knee joint. 4. Surgery: If there is a large amount of fluid, surgery should be chosen to extract the fluid, and antibiotics can be taken after the surgery to prevent secondary infections, and attention should be paid to strict aseptic operation. Meniscus surgery after 8 months of effusion, to the hospital in a timely manner, to clarify the severity, and actively cooperate with the doctor’s treatment. The above drugs need to be used in accordance with medical advice.