For the clinical symptoms of patellar tendinitis, the primary manifestation is significant localized pain. In such patients, the pain often worsens considerably under excessive exertion or exposure to cold. In severe cases, it can affect the flexion and extension movements of the patient's knee joint, thus impairing normal function. The treatment methods should include the following points: First, it is necessary to ensure rest and protection, reducing stimulation of the affected area and avoiding exposure to cold. Second, actively apply heat locally, usually with a bag of salt or a hot water bottle. Third, combine treatment with some medications, such as applying topical ointments that invigorate blood circulation and remove blood stasis, taking oral non-steroidal anti-inflammatory and analgesic drugs, and using drugs that invigorate blood circulation and remove blood stasis. Local pain point block injections may also be actively performed. (The use of medications should be under the guidance of a professional doctor.)