There are many causes of leg swelling, nutritional causes are mainly seen in hypoproteinemia, seen in those suffering from wasting diseases, suffering from tumors, tuberculosis, etc. Hypoproteinemia is mostly generalized edema. There are also some diseases that cause leg swelling, hypocardia and kidney diseases that may lead to tissue edema. Cardiac hypofunction is mainly seen in right heart failure, body circulation stasis, and in severe cases, generalized edema. Also hypothyroidism, certain medications, can cause leg swelling. There are also varicose veins in the lower extremities, deep vein thrombosis in the lower extremities, and deep vein valve insufficiency. Rarely, there is idiopathic edema, which mostly appears at the same time in both feet, is mild, often appears when standing for a long time or when exerting oneself, and can gradually disappear if lying down or after resting.