Swelling of the feet has two factors: it may be physiological reasons, such as standing for a long time, late pregnancy, etc.; it may also be pathological reasons, such as heart failure, cirrhosis of the liver. 1. Physiological swelling: due to gravity, the blood in the lower limbs can not return to the heart and accumulates in the veins of the lower limbs, resulting in swelling of the feet; endocrine edema: it often occurs in women, pre-menstrual period and the late stage of pregnancy will appear edema of the feet; those who have been standing for a long time can often move the lower limbs, massage the lower limbs, and avoid long time wearing high-heeled shoes and so on. 2. Pathological edema: Surgical diseases, such as foot fracture, abrasion, burns, etc., can be easily identified by naked eyes because of the presence of trauma; internal diseases such as heart failure, pericardial effusion, acute nephritis, cirrhosis of the liver, hyperthyroidism, diabetes mellitus and so on. Treatment: generally need to treat the primary disease, while more diuretics such as furosemide, hydrochlorothiazide, etc. are used to treat edema. Swelling of the feet is recommended to consult a doctor in time, under the guidance of the doctor to identify the causes and then actively treat.