Generally, when a patient has swollen dorsum of the foot, it is considered to be caused by cardiac insufficiency, which leads to systemic blood circulation imbalance and edema in the lower part of the body. If the edema only appears on the dorsum of the foot, the condition is considered to be mild and may be a grade 2 or grade 3 cardiac insufficiency. It is recommended to consider checking the cardiac enzyme profile, electrocardiogram, echocardiogram, etc. to further understand which heart disease is responsible for the condition. It is recommended to actively deal with the primary disease, consider giving diuretics to reduce the burden on the heart and reduce the edema of the dorsalis pedis, such as hydrochlorothiazide or spironolactone. In addition, it is important to pay attention to a low-fat and low-salt diet.