The common treatments for meniscus injury knee effusion and edema are conservative treatment and surgery, of which conservative treatment includes life therapy, physical therapy and medication. The specific treatment should be determined by the doctor according to the patient’s specific condition, physical condition and so on. 1. Lifestyle therapy: patients should take sufficient rest, reduce the amount of joint activity, and then use elastic knee pads to protect the joints and create pressure on the fluid, thus promoting fluid absorption. In addition, patients should control their weight and perform functional exercises. 2. Physiotherapy: patients can be assisted with localized hot compresses, electric physiotherapy, acupuncture, massage, massage and other specialized treatments, which generally need to be completed with the assistance of clinicians, which can promote blood circulation, accelerate the metabolism, which is conducive to the absorption of effusion and reduce the symptoms of swelling and pain in the knee joints. 3. Medication: Anti-inflammatory and anti-swelling medications and medications that invigorate blood circulation and remove blood stasis can be chosen, such as diclofenac sodium, celecoxib, erliximab, etc. Diosmin is commonly used to reduce swelling and reduce the inflammation and pain caused by meniscus injuries. 4. Surgery: If conservative treatment is ineffective, minimally invasive surgery can be performed under arthroscopy to investigate the degree of meniscus injury, and according to the degree of meniscus injury, the meniscus can be sutured or partially resected, which is very effective for most patients. If a large amount of fluid is present, active puncture and aspiration can be performed, but care must be taken to maintain asepsis. It is recommended that when suffering from meniscus injury knee effusion and edema, you should go to the hospital in time to identify the cause of the disease and actively cooperate with the doctor’s treatment.