contribute to edema.
Fluid may accumulate in the legs and sometimes in the abdomen.
Because heart, kidney, liver, vein, and medication-related swelling can look similar, persistent unexplained edema deserves proper evaluation rather than self-diagnosis.
One Swollen Leg Deserves Particular Attention
There’s an important difference between gradual swelling in both ankles and sudden unexplained swelling in one leg.
One possible cause is deep vein thrombosis (DVT)—a blood clot in a deep vein, usually in the leg.
Possible warning signs can include sudden swelling, calf pain or tenderness, warmth, and skin-color
