If your ankles tend to swell at the end of the day, it may be more than just discomfort: your body could be signaling a deeper problem.

Ankle support devices

Experts from the Cleveland Clinic and Harvard Medical School emphasize that ankle swelling—technically called peripheral edema—can result from simple lifestyle choices or more serious medical issues. Identifying the underlying cause is crucial for effective treatment and prevention.

What is edema and why do ankles swell?

Ankle swelling is usually caused by a buildup of fluid in the body's tissues, a condition known as edema.

Due to gravity, the feet and ankles are particularly vulnerable, especially after prolonged periods of sitting or standing. When this happens, blood circulation slows down and the lymphatic system may struggle to effectively remove excess fluid.

Common causes of swollen ankles

1. Prolonged sitting or standing

Staying in the same position for too long, such as on long flights or prolonged desk work, can impede blood circulation and allow it to pool in the lower legs.

Why do ankles swell? How to avoid it?

Factors such as high salt intake, dehydration, or hormonal changes can cause your body to retain fluid, especially in the lower limbs, at the end of the day.

3. Circulatory problems

Conditions such as chronic venous insufficiency (when the veins have difficulty returning blood to the heart) can cause swelling due to blood pooling in the legs.

4. Heart or kidney problems

Swelling in both ankles, accompanied by fatigue or rapid weight gain, may signal early signs of heart failure or kidney problems.

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