The meniscus injury with fluid accumulation can be treated by braking, cold compress and hot compress, medicine and surgery. 1. Braking: if the patient has symptoms of fluid accumulation after meniscus injury, immediately brake to help the patient relieve and treat. 2. Cold compress and hot compress: after meniscus injury and fluid accumulation, cold compress can be used within 24 hours, and hot compress can be used 48 hours later to promote the elimination of local swelling and fluid accumulation. 3. Drug treatment: After meniscus injury, anti-inflammatory and pain relieving drugs can also be used to eliminate swelling. 4. Surgical treatment: after the above three methods fail to get good treatment, the patient should take surgical treatment.