1 doctor weighed in:

What causes swelling of the feet and legs?

1 doctor weighed in
Dr. Michael Miller
Wound care

In brief: Water and gravity

Our bodies have a large amount of water needed to keep organs functioning.
The vessels that carry the fluids are not perfect and they can leak. Also, our tissues have a certain amount of water to stay moist and pliable. Gravity works to pull the fluids down towards the feet even in healthy people. It will worsen as the day progresses. Treatment is compression socks/elevation. Avoid water pills.

In brief: Water and gravity

Our bodies have a large amount of water needed to keep organs functioning.
The vessels that carry the fluids are not perfect and they can leak. Also, our tissues have a certain amount of water to stay moist and pliable. Gravity works to pull the fluids down towards the feet even in healthy people. It will worsen as the day progresses. Treatment is compression socks/elevation. Avoid water pills.
Thank