Thigh pain after cerebral infarction may be caused by physiological factors such as exertion and cold, but also caused by calcium deficiency and excessive rehabilitation exercises. 1. Physiological factors: Thigh pain after cerebral infarction may occur if the body is exposed to cold due to inattention to care. It is also seen that the patients cannot move independently, so the blood circulation is not smooth, and the pain will also appear. 2. Calcium deficiency: if the patient does not pay attention to nutritional intake after cerebral infarction, long-term calcium deficiency will easily lead to local muscle spasm and thigh pain after cerebral infarction. 3. Excessive rehabilitation exercise: after cerebral infarction, limb activity is inconvenient, long-term lack of exercise, rehabilitation exercise is easy to lead to muscle injury or ligament strain, which will lead to the phenomenon of post-cerebral infarction thigh tendon pain. There are many causes of post-cerebral infarction thigh pain, so it is recommended to go to the hospital in time to find out the cause of the disease and take symptomatic treatment. Daily attention should be paid to regular review and regular monitoring of symptoms.