Diabetic patients who have swollen feet must figure out the reasons: First, from the perspective of treatment, drugs like diuretics can be used, such as furosemide and spironolactone, especially spironolactone is more suitable for diabetic patients, but the use of diuretics must be noted, and drugs like hydrochlorothiazide should be avoided as much as possible, because the effect of hydrochlorothiazide on blood sugar is relatively large, which is not beneficial to the condition of diabetic patients Therefore, from the perspective of swelling, the routine use of furosemide and spironolactone is able to achieve the purpose of swelling reduction. Second, for the cause of treatment, diabetic patients will appear swollen feet, mainly because of the kidney and heart problems, that is, the patient may have renal failure and heart failure, in this case will appear swollen feet, if it is renal failure, we should use drugs to protect kidney function, such as compound alpha-keto acid tablets and so on; heart failure in addition to diuretics, you can use cardiac drugs, such as digoxin, to achieve the purpose of treatment. In addition to diuretics, cardiac drugs, such as digoxin, can be used to achieve the purpose of treatment. The combination of these drugs has a better effect on the symptoms of swollen feet in diabetic patients.