Partial rupture of the medial patellar ligament may cause knee joint dyskinesia, partial muscle atrophy, intractable pain and other symptoms. 1. Knee joint dyskinesia: usually due to partial rupture of the medial patellar ligament, the muscle contraction of quadriceps cannot be transmitted to the tibia normally, thus causing knee joint dyskinesia, and knee joint dyskinesia may cause pain and other symptoms. 2. Partial muscle atrophy: Usually due to partial rupture of the medial patellar ligament, muscle atrophy occurs in the medial head of the quadriceps muscle, and partial muscle atrophy usually results in muscle weakness and other symptoms. 3. Intractable pain: it may be due to partial rupture of the medial patellar ligament, change of patellar force, wear and tear, and thus the phenomenon of intractable pain. If the phenomenon of partial rupture of the medial patellar ligament, should consult the doctor in time to avoid delaying the condition, daily life should be appropriate exercise, pay attention to rest, reasonable diet.