Cerebral ferritin deposits are degenerative lesions of the central nervous system caused by the deposition of ferritin on the surface of the brain and spinal cord. The specific etiology of cerebral ferritin deposits is unknown and may be related to brain tumors, occupations, and vascular malformations. Cerebral ferritin deposition refers to the irreversible neurological damage caused by the deposition of ferritin on the surface of the brain and spinal cord as a result of chronic hemorrhage in the subarachnoid space. It is characterized by capillary hemorrhage, which leads to the breakdown of hemoglobin and its storage in the form of ferritin, and the deposition phenomenon occurs. Excessive deposition of cerebral ferritin may lead to recurrent bleeding in the subarachnoid space, causing blockage of blood vessels in the brain, and the patient may develop symptoms such as sensorineural deafness, spinal cerebellar ataxia, limb weakness, and increased muscle tone. The appearance of brain ferritin deposition, must promptly go to the regular hospital, under the guidance of the doctor to clarify the diagnosis and treatment, daily attention to more rest.