[â¦] Low body temperature is a direct indicator of a poorly functioning metabolism. Metabolism basically refers to how efficiently your body can turn fuel (food) into energy (such as heat). So low body temperature is a good indicator that your metabolism isnât doing so hot (pun intended).
1 Blood clot in the leg: A blood clot is a clump of blood thatâs in a solid state. When a blood clot forms in a vein of the leg, it can impair blood flow, leading to swelling and discomfort.  Injury or infection: An injury or infection affecting the foot, leg, or ankle results in increased blood flow to the area.
The list below shows some of the causes of Lower leg swelling mentioned in various sources: 1  Antithrombin Deficiency-lower leg swelling. 2  Antithrombin Deficiency, type I-lower leg swelling. 3  Antithrombin Deficiency, type II-lower leg swelling. 4  Calf strain. 5  Cirrhosis of liver. 6  Congestive cardiac failure.