Tendons usually refer to ligaments, tendons or similar striated structures, soft tissue structures. Pain can be caused by a variety of factors, such as external forces or sprains, local inflammatory irritation, etc. Because of its wide range of causes, knee tendon pain should be seen by the relevant department as early as possible and should not be treated on its own. For example, some infected pains need timely consultation, otherwise it is easy to delay the condition. Self-application of topical painkillers or simple braking and resting may be effective for a short time, but may also lead to the spread of infection.