Meniscus injuries can be treated conservatively in some cases and surgically in others. As to what can be treated conservatively, please see the short article on my website “Several Conditions for Conservative Treatment of Meniscus Tears”. If the meniscus does not fit the scope of conservative treatment, surgery should be performed. For the reasons why surgery is needed for meniscus injuries that require surgery, please see the article “Meniscus injuries that are not suitable for conservative treatment should be operated as soon as possible” on my website. For meniscus that requires surgery, the principle of surgery should be: if sutures can be done, try to suture, if sutures cannot be done and a part of the meniscus needs to be removed, try to preserve every millimeter of the meniscus. As far as possible, the meniscus should not be completely removed. The earlier the meniscus is operated on that requires surgical treatment, the better the hope of suturing and the less meniscus will be removed. There are usually no serious sequelae left after surgery (the knee ages much more slowly after meniscectomy than one might think or fear). It is highly unlikely that a meniscus that is not suitable for conservative treatment will heal without surgery.