Swollen and painful feet may be caused by hyperuricemia or gout. In addition, it may also be caused by diabetic foot, and some patients may also experience this discomfort due to vascular occlusion in the lower extremities. It is advisable to have an arteriovenous ultrasound of both lower extremities and to check serum uric acid and liver function to determine whether the swelling of the feet is accompanied by hypoalbuminemia. If necessary, thyroid function can also be checked, because hypothyroidism itself may also cause swelling of the feet, but it does not usually lead to pain in the lower extremities. It can also be further ruled out whether the swelling of the feet is related to the use of specific medications, such as the calcium channel blockers amlodipine, feloxypine or glucocorticoids, which may cause swelling of the feet.