The swelling in response to venous or lymphatic blockage

Again there is edema, but more localized and rather asymmetric.
Venous insufficiency is a result of varicose veins. These veins of the lower limbs are damaged. They back the wrong blood to the heart, leaving him to flee across their walls. They cause stagnation of blood and water in the legs, resulting in edema.
These veins may be damaged because of wear. We speak of chronic venous insufficiency. They may also be the seat of phlebitis, ie an acute obstruction by a clot. Again the blood can pass and generates an inconstant edema. The leg is hot and painful, consult quickly.
Swollen feet causes.
The lymphatic insufficiency is much rarer. She often signs blocking the return of lymph to the heart through an obstacle. The doctor will differentiate venous insufficiency and lymphatic insufficiency and ask examinations useful to find the cause.