The biggest clinical benefit of wearing elastic stockings is that they can prevent deep vein thrombosis, especially for patients who are bedridden or have fractures for a long time. Because elastic stockings can increase the strength of lower limb muscles and promote the venous return of lower limbs, it is helpful to prevent thrombosis. However, it is not clinically absolute, and for people with high risk factors, it is possible that medication may also be needed for intervention. Clinically bad because the compression of elastic stockings is relatively high, it is easy to cause poor blood supply to the lower limbs, especially for patients with atherosclerosis and arterial stenosis in the lower limbs. Therefore, when applying compression stockings clinically, there must be a trade-off between the pros and cons, depending on the state of the patient’s blood vessels and the patient’s real situation, to see which benefit is greater before applying them to the patient. It is important to follow the doctor’s instructions and not to apply the measure blindly.