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What causes edema in ankles and feet?

Many things can cause swelling in ankle and feet from too much salt intake, venous insufficiency, kidney disease, heart diseaseā€¦
If swelling does not improve over night or with elevation, pitting edema (press on area with finger does indent last awhile), skin feels tight, red and hot to touch &/or is weepy these are all symptoms that should be discussed with a medical professional.
Venous insufficiency can be simply fixed by wearing compression stockings that are properly fitted by a professional.

Foot, leg, and ankle swelling is common with the following situations:

	Prolonged standing

	Long airplane flights or automobile rides

	Menstrual periods (for some women)

	Pregnancy -- excessive swelling may be a sign of preeclampsia, a serious condition sometimes called toxemia, which includes high blood pressure and swelling

	Being overweight

	Increased age

	Injury or trauma to your ankle or foot


Swollen legs may be a sign of heart failure, kidney failure or liver failure. In these conditions, there is too much fluid in the body.



Other conditions that can cause swelling to one or both legs include:




	Blood clot

	Leg infection

	Venous insufficiency(when the veins in your legs are unable to adequately pump blood back to the heart)

	Varicose veins

	Burns (including sunburn)

	Insect bite or sting

	Starvation or malnutrition

	Surgery to your leg or foot

	Blockage of the lymph nodes in the legs


Certain medications may also cause your legs to swell:




	Hormones like estrogen (in birth control pills or hormone replacement therapy) and testosterone

	Blood pressure medicines called calcium channel blockers (such as nifedipine, amlodipine, diltiazem, felodipine, and verapamil)

	Steroids

	Antidepressants, including MAO inhibitors (such as phenelzine and tranylcypromine) and tricyclics (such as nortriptyline, desipramine, and amitriptyline)