There is no such thing as a “greater” ischemic focus in the subcortex of the frontal parietal lobes bilaterally or a lacunar cerebral infarction. Bilateral subfrontal parietal cortex ischemic foci is a descriptive term used to describe foci of chronic hypoxia and ischemia in the corresponding brain tissues due to narrowing or occlusion of blood vessels supplying the subfrontal parietal cortex bilaterally as a result of various reasons, as detected by CT or MRI imaging. There are usually no clinical symptoms, but may also manifest as memory loss, dizziness and other symptoms. Cavernous cerebral infarction refers to the occlusion of the lumen of small penetrating arteries in the deep part of the cerebral hemisphere or brainstem, forming small infarct foci. Due to the small foci, patients with lacunar cerebral infarction may have no obvious clinical symptoms, and those who have symptoms may show mild hemiparesis, dysarthria, ataxia and so on. The prognosis of lacunar cerebral infarction is good, but it is prone to recurrent episodes of multiple lacunar cerebral infarction. Bilateral frontoparietal subcortical ischemic foci and lacunar cerebral infarction both belong to cerebrovascular disease, there is no saying which one is more serious, without timely and effective control, both can develop, so it is recommended to consult a doctor in time for treatment.