The number of years a 45-year-old patient with bilateral frontal ischemic foci can live is related to the size and number of infarcts and the patient’s underlying physical condition. With active treatment, the life expectancy of some patients may not be affected, and patients with severe conditions may survive for months to years. Cerebral infarction is a critical condition in neurology and is an irreversible disease. In general, the life expectancy of a 45-year-old patient with bilateral frontal ischemia can be unaffected if the infarct area is small, treated in time, well cared for, with no other complications such as lung infections, and with no underlying diseases such as heart disease or kidney disease. If the infarct size is large, not timely and effective treatment, due to long-term bedridden combined with lung infection, or have serious underlying diseases, life may be at risk at any time, and the patient may survive for several months to several years. It is recommended that the above patients be actively treated to try to obtain a better prognosis.