The causes of swollen feet in leukemia include hypoproteinemia, kidney damage and other reasons, and the treatment methods include physical therapy, medication and so on. 1. Hypoproteinemia: leukemia itself does not cause swelling of the feet, but in the later stage of the disease, due to loss of appetite, malnutrition and other causes of protein intake is insufficient, which will cause protein deficiency in the body, thus causing symptoms such as edema of the limbs. Patients can apply albumin and other drugs for treatment, and at the same time consume more high-protein foods such as milk, fish and meat. Elevate the feet to promote blood return. 2. Kidney damage: leukemia patients may cause kidney function damage due to the use of a large number of drugs, etc., and the loss of protein in the blood, which may cause swelling of the feet. Diuretics such as furosemide can be used for treatment. In addition to the above causes, liver disease and heart disease caused by leukemia may cause patients to develop the above symptoms. Targeted treatment can also be given according to the specific situation. Treatments also include external compresses and massages. If the patient’s leukemia foot swelling symptoms are serious, or if the symptoms persist and do not improve, he/she should go to the hospital in time for treatment. The above drugs should be applied under the guidance of a doctor to avoid adverse reactions.