Lacunar cerebral infarction Lacunar cerebral infarction is a special type of cerebral infarction, which is an ischemic softening lesion of brain tissue caused by occlusion of tiny arteries in the deep part of the brain on the basis of hypertension and atherosclerosis. Clinically, patients mostly have no obvious symptoms, or only mild inattention, memory loss, mild headache and dizziness, vertigo, and slow reaction. In contrast, multiple lacunar cerebral infarcts can affect brain function, leading to progressive intellectual decline and finally cerebrovascular dementia. For the treatment of this disease, hypertension should be actively treated, especially for those who have had lacunar infarction in their medical history and need to prevent recurrence, while care should be taken not to lower the blood pressure too fast or too low. It is recommended that you visit a neurologist. Cerebral atrophy is the most common chronic progressive disease in middle and old age. It is characterized by memory loss, emotional instability, loss of thinking ability, inability to concentrate, and in severe cases, dementia, language impairment, and eventual loss of intelligence due to one or more causes of insufficient blood and oxygen supply to the brain and a decrease in the size of brain tissue and the number of brain cells. The disease mostly occurs in patients over 50 years old, and the course of the disease can exceed several years or even more than 10 years. Suggestions: 1, pay attention to their own maintenance, such as: regular life, pay attention to a reasonable diet, appropriate exercise, avoid smoking, drinking alcohol, eat less high-fat diet, etc.. 2, can go to the neurological specialist for medical consultation. Arachnoid cyst Arachnoid cyst is a benign congenital brain cyst lesion, which is caused by abnormal division of the arachnoid membrane during development. The wall of the cyst is mostly arachnoid, glial and soft meninges, and the cyst contains cerebrospinal fluid-like cystic fluid. The cysts are located on the surface of the brain, in the cerebral fissure and the brain pool, and do not involve the brain parenchyma. Most of them are solitary, and a few are multiple. The disease is mostly asymptomatic, but large ones may compress both brain tissue and skull, which may produce neurological symptoms and craniofacial developmental changes. It is more common in children and adolescents, more common in males, and more common on the left side than on the right side.