The head MRI can clearly show the location of brain atrophy and the degree of brain atrophy, which is a common clinical condition. Brain atrophy is a common clinical condition. Physiological brain atrophy can occur in the elderly as they age, but it can also occur in patients with disease, and can be seen as atrophy of the brain lobes, widening of the brain sulcus, and thinning of the brain parenchyma on MRI. The risk factors of cerebral atrophy are related to hypertension, diabetes and hyperlipidemia. Patients will show clinical signs of memory loss and cognitive decline, and some patients may not recognize their relatives and have personality and behavioral changes.