
08/09/2025
Edema Series #1 Why are my feet swollen?
I am often asked by clients “Why are my feet swollen?" This is not a simple question.
The first step in dealing with edema is to identify the cause. It is best to consult with a medical provider and if the cause can not be simply eliminated, referral for edema therapy for management is appropriate.
Lower extremity edema refers to swelling in the legs, ankles, or feet due to the accumulation of excess fluid in the tissues. This condition can result from a variety of causes, ranging from benign to serious underlying health issues.
One of the most common causes is venous insufficiency, where the veins in the legs struggle to return blood to the heart efficiently. This leads to fluid leaking into surrounding tissues. Prolonged standing or sitting, especially in hot weather, can also cause temporary edema due to gravity and blood pooling. Injury or surgery involving the leg, ankle, or foot can also cause swelling.
Heart failure is a more serious cause, particularly when the right side of the heart is affected, leading to fluid backup in the lower body. Similarly, kidney disease can result in the body retaining excess sodium and fluid, contributing to swelling. Liver disease, such as cirrhosis, may reduce the production of proteins like albumin, which help keep fluid in the blood vessels. Other contributors include medications, infections, blood clots, and lymphatic obstruction.
Treatment and management are necessary to prevent secondary conditions such as sores and infections. Once the reason for edema has been found, treatment can begin.
Jennifer Ryan, RN, CFCN, CFCS
https://medlineplus.gov/ency/article/003104.htm
https://www.med.umich.edu/1libr/Homecare/MVN/LEEdema.pdf
https://www.mayoclinic.org/diseases-conditions/edema/diagnosis-treatment/drc-20366532
Learn about symptoms, causes and treatment of swelling caused by too much fluid in body tissues.