Cerebral tissue ischemic foci are often the imaging conclusions obtained by patients doing cranial CT or magnetic resonance, which are the manifestations of the formation of cerebral tissue ischemia, and can be seen in cavernous cerebral infarction, cerebral infarction and other diseases. Cerebral ischemic foci are ischemic foci formed by the hardening and occlusion of small arteries in the brain, resulting in ischemic and necrotic changes in the local brain tissue. According to the size of the infarcted area and the range of the infarcts, they can be divided into different conditions such as lacunar cerebral infarction and cerebral infarction. Cavernous cerebral infarction is a kind of cerebral infarction caused by ischemic micro-infarction foci, which can be clinically manifested by symptoms such as headache, dizziness, memory loss, and feeling of heaviness in limbs. Cerebral infarction is a kind of limited ischemia and necrosis of brain tissue caused by ischemia and hypoxia. The scope of ischemic necrosis in this disease is often larger than that of lacunar cerebral infarction, and patients may have symptoms such as hemiparesis, sensory impairment, nausea and vomiting. If ischemic foci of brain tissue are found on examination, please consult the doctor promptly and follow the medical advice for treatment.