In the clinical causes of lateral neck pain are many, the most common are caused by the following conditions. One, recently walking too much, strain will cause tendon strain, so that the side of the leg tendon pain, by paying attention to rest protection, local hot compress or topical blood circulation ointment, such as blood circulation pain cream, slowly will recover. Second, if the patient is traumatized by local tendon injury, will also cause tendon pain on the side of the leg, there will be swelling. Early need to actively cold compress, pay strict attention to rest protection, 48-72 hours after the injury, need to actively hot compress, can promote local blood circulation, thus promoting the repair of tendon loss, slowly will recover.