The first thing to consider is whether there is cardiac insufficiency, because cardiac insufficiency is a common and serious disease. It may be caused by patients who are sedentary or standing for a long time. Especially obese patients; too much exercise can also trigger the appearance of lower limb edema. In addition, there are some people who may have idiopathic edema, which is unexplained edema. Some people take calcium channel blockers, amlodipine or felodipine, or oral glucocorticoids, which can cause lower limb edema. In addition, conditions such as nephrotic syndrome, hypothyroidism, heart failure, all of which may indirectly lead to lower limb edema, especially during the onset of the disease, it is easy to appear this abnormal condition, patients are advised to further clarify the diagnosis, to do the corresponding examination items, you can initially check the heart ultrasound, liver function, kidney function, thyroid function and so on.