After meniscus surgery with a large amount of fluid, it is forbidden to carry out strenuous activities, and promptly consult a doctor for examination. The doctor will choose the treatment method according to the condition and your own conditions. Surgery is usually used and supplemented by medication, physical therapy and general treatment. 1. Surgical treatment: Surgical methods of puncture or suction should be chosen, and attention should be paid to strict aseptic operation. 2. Medication: Oral medication can be taken to activate blood circulation and remove blood stasis, such as Duiyiwei capsule and Longxuancang capsule, which can promote local blood circulation and improve the absorption speed of joint fluid. If infection occurs, antibiotics are needed. In addition, you can also take some anti-inflammatory drugs to relieve pain, such as nimesulide, ibuprofen and other non-steroidal drugs. 3. Physiotherapy: If the joints are swollen, you can wear a slightly tighter knee brace to help reduce swelling, or you can assist with physiotherapy for treatment. 4. General treatment: adequate rest should be taken, reduce the amount of joint activity, followed by the use of elastic knee pads to protect the joints, forming pressure on the fluid, thus promoting the absorption of fluid. In addition, patients also need to control their weight and perform functional exercises appropriately. When there is a large amount of effusion after meniscus surgery, it is necessary to go to the hospital in time for relevant examinations and actively cooperate with the doctor’s treatment. The above drugs should be used according to the doctor’s prescription.