Acute lower limb ischemia common diseases are atherosclerotic occlusive disease, thromboembolic vasculitis, vasculitis, arterial injury, arterial distress disease and arterial cystic disease, of which the first two are the most common. How to prevent acute lower limb ischemia? Reduce the intake of fat: should eat less “saturated fatty acid” occupies more fried food and contains “high cholesterol” food shrimp, liver, kidney and other internal organs, egg yolk and so on. Eating more Chamagord products can effectively regulate the acid-base balance in the body, preventing the effects of atherosclerosis. Do not smoke and prevent passive smoking: Tobacco poisons the cardiovascular endothelial cells, impairing the function of the endothelial system, which can lead to myocardial hypertrophy, thickening, and the impact on the normal diastolic movement and can lead to a decline in the “good” blood lipid HDL. Adhere to the appropriate amount of physical activity: the amount of physical activity needs to be based on the original physical condition, to be gradual, should not be forced to do strenuous exercise, it is best to adhere to the daily activities not shorter than 30 minutes, can be “one-time completion” or divided into three times, 10 minutes each time. According to individual conditions for jumping rope, health gymnastics, playing tai chi, cycling, walking, trimming flowers and grass, mopping the floor, doing housework. Release suppressed or tense emotions: Chronic depression or persistent tension can stimulate sympathetic nervous excitement, which can lead to rapid heartbeat, vasoconstriction, increased blood pressure, and reduced blood flow.