The foot valgus occurs in the lower limb of the hemiplegic side after cerebral hemorrhage because the cerebral hemorrhage leads to limb paralysis, decreased muscle strength, low muscle tone, and inability to maintain normal joint function position, resulting in external rotation and abduction of the lower limb. In this case, we should actively treat the primary disease. Some patients can slowly improve their symptoms and recover muscle strength after the cerebral hemorrhage is gradually absorbed. It is also necessary to strengthen care to help patients keep their lower limbs in a functional position to prevent joint deformity after a long period of time. Patients who are in a position to do so can ask the rehabilitation department for consultation and rehabilitation physical therapy, including active activities, passive massage, acupuncture, electroacupuncture stimulation, magnetic heat, infrared light and other methods to help patients recover limb function. If it takes longer than half a year to recover, it is very unlikely to recover on its own, and if necessary, surgery is needed to correct the deformity.