Less blood to your kidneys causes fluid to build up in your tissues and because your kidneys are not able to dispose of all the sodium and water, the result is water retention or edema.
Less blood to your kidneys causes fluid to build up in your tissues and because your kidneys are not able to dispose of all the sodium and water, the result is water retention or edema.
You may also notice weight gain or a swelling in your legs, feet, or abdomen. This is due to the slower rate of blood flowing out of your heart causing the blood that is returning to your heart to back up, and the fluid to build in your tissues.