Most right parietal hemorrhages, like other brain hemorrhages, are associated with headache, impaired consciousness in those with large hemorrhages, and epilepsy in some patients, and the symptoms it causes vary mainly depending on the area of the parietal lobe damaged. The parietal lobe is the higher cortical center of sensation. After a hemorrhage in the right parietal lobe, mild hemiparesis of the left limb and compound sensory impairment of the left trunk can occur, that is, hyperalgesia and absence of sensation such as pain, temperature, solidity and two-point discrimination in the left side of the body. If the hemorrhage occurs in the supramarginal and angular gyri of the parietal lobe, the patient may not recognize his or her contralateral limb, and the pain sensation in the hemiplegic limb may be absent. We know that the vast majority of people have a left-handed dominant hemisphere and a minority have a right-handed dominant hemisphere. If this patient is left-handed, his dominant hemisphere may be the right hemisphere. Such a patient may have a hemorrhage in the right parietal angular gyrus, and may have an inability to calculate, a loss of finger recognition, an inability to discriminate between left and right, and an inability to write. If the hemorrhage occurs in the superior limbic gyrus of the dominant side, there may be a loss of use of both hands.