A 3rd degree meniscus injury of the right knee with severe discomfort usually requires surgery; if the condition is good, conservative treatment is also an option. A 3rd degree meniscus injury in the knee, if accompanied by severe pain, interlocking, limited mobility and other serious discomfort symptoms, indicates that this is a very serious injury, usually requires surgical treatment. The 3rd degree meniscus injury is usually treated by minimally invasive surgery, meniscus suture repair or partial meniscectomy, after the surgery, you need to limit the activities of the knee joint, bed rest, can not go down to the ground too early to bear weight, so as not to affect the effect of the surgery. After the surgery, pay attention to diet, eat easily digestible food, eat more fresh vegetables and fruits as well as protein-rich food. However, if the right knee meniscus injury of the third degree does not involve the joint surface and there is no obvious discomfort, you can also choose conservative treatment, the right lower limb of the long leg brace fixation, and later on the functional exercise of the knee joint. Right knee meniscus injury of the third degree does not involve the joint surface should promptly follow the doctor’s instructions for standardized treatment, do not blindly self-treatment, in order to avoid delaying the condition.