The recovery time after a medial knee tendon strain is determined by the severity of the patient’s tendon strain. If the tendon strain is relatively mild, with only painful symptoms, and if the joint stability is very good, it will take about 2-3 weeks to recover from the strain with strict local protective braking and active topical application of blood-stasis-boosting creams. For patients with very severe tendon strains, such as complete rupture, very poor joint stability and positive lateral stress test, surgery is usually the main treatment, which requires repair and reconstruction of the damaged tendon. After surgery, strict local protective braking and active cooperation with the treatment are required, and complete recovery takes about 1.5-2 months.