7 doctors weighed in:

Why do legs swell with dvt?

7 doctors weighed in
2 doctors agree

In brief: Venous obstruction

The deep veins are major outflow from the legs.
When they clot, the blood pools and causes edema by fluid extravasation.

In brief: Venous obstruction

The deep veins are major outflow from the legs.
When they clot, the blood pools and causes edema by fluid extravasation.
Dr. Creighton Wright
Dr. Creighton Wright
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Dr. Sendhil Subramanian
Radiology - Interventional
1 doctor agrees

In brief: Reason for swelling

The swelling results if the veins in your legs have a significant enough of a blood clot to prevent blood from returning to your heart quickly enough.
This will result in increased amount of blood pooling in your leg resulting in swelling.

In brief: Reason for swelling

The swelling results if the veins in your legs have a significant enough of a blood clot to prevent blood from returning to your heart quickly enough.
This will result in increased amount of blood pooling in your leg resulting in swelling.
Dr. Sendhil Subramanian
Dr. Sendhil Subramanian
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Dr. Dean Giannone
Internal Medicine

In brief: IT's the blood.

A DVT is a clot in one of the major veins of the leg.
This blockages prevents blood from leaving the leg once it enters via the arteries. The pressure within the blocked vein allows fluid to then extrude into the leg itself, causing swelling. It's akin to a clogged drain where fluid builds up behind the blockage.

In brief: IT's the blood.

A DVT is a clot in one of the major veins of the leg.
This blockages prevents blood from leaving the leg once it enters via the arteries. The pressure within the blocked vein allows fluid to then extrude into the leg itself, causing swelling. It's akin to a clogged drain where fluid builds up behind the blockage.
Dr. Dean Giannone
Dr. Dean Giannone
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Dr. Rick Koch
Internal Medicine - Cardiology

In brief: Blood clot

Impedes venous return.

In brief: Blood clot

Impedes venous return.
Dr. Rick Koch
Dr. Rick Koch
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