The right frontal ischemic foci are not severe, which is an imaging description, mostly seen during cranial magnetic resonance examinations. MRI can detect tiny foci, and if a single right frontal ischemic foci appear, no treatment is required. Such foci can be detected in some patients over 40 years of age in a normal population on examination. Such foci appear due to ischemic damage to brain cells, such as localized sclerosis of small arteries, vitreous degeneration, and poor distal blood supply, resulting in neurotrophic deficiency or outright necrosis, and imaging will show such small foci. Because of the small size, there will be no obvious clinical manifestations and the symptoms will not progress. If the lesion is over 60 years old almost everyone can find this lesion in the brain. If the lesion is more and does not match with the age, further examination is needed to clarify whether the patient has risk factors for cerebrovascular disease such as hypertension, diabetes, hyperlipidemia, etc.