Symptom 10: Swelling in the Legs
The final symptom in our list is leg swelling, also known as peripheral edema. This can occur when the heart, due to atrial fibrillation, cannot pump blood efficiently. As a result, blood can back up in the veins and cause fluid to accumulate in the tissues of the lower extremities, leading to swelling.
Leg swelling related to AFib usually occurs in both legs and may include the calves or even the thighs. The swelling can cause discomfort and make it difficult to move or walk. It can also lead to a feeling of heaviness or tightness in the legs.
This symptom is of particular concern as it can be a sign of heart failure, a condition where the heart can’t pump enough blood to meet the body’s needs. Heart failure can develop as a complication of untreated or poorly managed atrial fibrillation. Therefore, if you notice unexplained swelling in your legs, especially if it’s accompanied by other symptoms of AFib, you should seek immediate medical attention. (9)
