Knee strain generally refers to the strain of the knee joint, which can be treated by general treatment, medication, physical therapy and surgery according to the condition. 1. General treatment: Avoid cold knees in daily life and keep them warm. Exercises such as going up and down steps, climbing mountains, or riding bicycles should be avoided, as they can lead to further aggravation of knee strain. Secondly, when you are sitting or standing, you can choose a high chair and avoid sitting on a short bench, so as not to let the knee be in a state of flexion for a long time. 2. Medication: If the knee strain causes obvious pain symptoms, you can take non-steroidal anti-inflammatory analgesic drugs, such as celecoxib, acetaminophen and so on. You can also take oral glucosamine sulfate and other cartilage nutritional drugs for treatment. 3. Physical therapy: hot water bags can be used to apply hot compresses to the knee to promote blood circulation and help the absorption of inflammatory metabolites, thus promoting recovery. Ultrasound, magnetic therapy and other physical therapy can also be carried out. 4. Surgical treatment: If the symptoms of knee strain are serious, conservative treatment is ineffective, and the daily life is seriously affected, surgical treatment can be considered, such as knee arthroplasty. Knee strain should seek medical treatment in time, complete the relevant examination, follow the doctor’s instructions for standardized treatment after a clear diagnosis, and do not blindly use medication on your own to avoid delaying your condition.