The inflexibility of the left limb after removing the thrombus of cerebral infarction may be caused by the damage of the cerebral infarction site has not recovered. After removing the thrombus of cerebral infarction, the ischemic and hypoxic brain tissues need some time to recover; it may also be due to the serious damage of brain tissues, which is difficult to recover even after removing the thrombus. Acute cerebral infarction is a critical condition in neurology. Damage to the functional areas of the brain may cause sensory impairment of one limb, limb mobility of one limb, and so on. After removing the embolus in cerebral infarction, the ischemic and hypoxic brain tissue needs some time to recover. Therefore, patients whose left limbs are still inflexible after thrombus removal can be actively treated and closely observed for changes in their conditions. If the cerebral infarction is severe, it may be difficult to restore the function of brain tissue after removing the thrombus. It is recommended that patients should take active rehabilitation exercise to try to get a better prognosis. If the left side of the limb is still inflexible after the removal of the thrombus of cerebral infarction, it is recommended to consult a professional doctor.