The small cystic high signal seen in the white matter of bilateral ventricles is a description of the lesions in the brain by MRI, and the common causes of the corresponding lesions may include cerebral vascular space, soft foci in the brain, and so on. 1. Vascular gap: mainly refers to the corresponding changes caused by the widening of the vascular gap in the brain, and the corresponding foci are mainly manifested as liquid signal shadows, which is a normal physiological structure and will not lead to obvious physical symptoms, so there is no need for special intervention. 2. Intracerebral softening foci: the corresponding foci are mainly related to brain tissue necrosis caused by ischemia, local brain tissue liquefaction will cause the corresponding foci, and cerebral arteriosclerosis is closely related. Bilateral lateral paraventricular abnormal signal shadow, mainly combined with clinical symptoms, must pay attention to the control of blood pressure, blood lipids, once there is obvious headache and dizziness, need to consult a doctor in a timely manner, under the guidance of the clinician for standardized treatment.