Ischemia can lead to several major systemic diseases and dysfunctions: First, lead to endocrine system disorders, common diseases caused by ischemia are endocrine disorders, women, such as menstrual cycle inaccuracy, premature ovarian failure, estrogen and progesterone relative imbalance, immune deficiency, etc. are caused by ischemia. Second, the circulatory system ischemia can lead to coronary atherosclerotic heart disease, ischemic heart disease, myocarditis, pericarditis and so on. Third, ischemia will lead to lower immunity of the respiratory system, such as upper respiratory tract infections, pneumonia and other diseases prone. Fourth, ischemia is particularly significant for neurological diseases, which can lead to cerebral infarction, cerebral arterial blood supply is insufficient, cerebral capillary function is reduced. Fifth, ischemia can also lead to anemia.