What is cerebral edema?

Brain edema is not a single disease, it is caused by diseases of various systems of the body or intracranial diseases caused by increased brain tissue moisture, and caused by a secondary pathological changes. Systemic diseases include cardiovascular system diseases, respiratory diseases, including poisoning, shock, bacteria, virus infection, renal failure, these systemic diseases can cause brain edema. In addition, intracranial diseases, such as cerebrovascular disease and intracranial tumors, can also cause corresponding brain edema.