MRI of meniscal injury showing up to grade III signal and physical examination and signs support meniscal injury and should be treated with surgery as early as possible. The following problems can occur if surgery is delayed: ① The extent of the tear will be increased, resulting in the removal of more meniscus during future surgery. ② Early surgery increases the chances of meniscal suturing, which can preserve the meniscus form and function to the greatest extent. ③ Even if the meniscus is completely removed, early surgery will reduce the wear and tear of the torn meniscus on the articular cartilage.