10 Blood Clot In Leg Symptoms
Reviewed: Dr. Gromatzky
Symptom #10: Swelling
Swelling is most apparent when blood clots occur in deep veins. When there is obstruction of blood outflow from the extremities back toward the heart, it can result in pain and swelling. In cases where the vein is completely blocked, smaller veins may enlarge to allow the bypass of obstruction. These smaller veins are known as collaterals and can be prominent under the skin.
In an uncommon and severe form of deep venous thrombosis of the leg known as phlegmasia cerulea dolens, there is extensive blockage of the major and collateral veins. Left untreated, it can lead to gangrene.
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