Swollen feet are often linked to pregnancy, injuries, or jobs that require prolonged standing. However, there are many other possible causes. While mild swelling can usually be relieved with rest or soaking in ice water, sudden or severe swelling could indicate a more serious underlying condition that needs medical attention.

Possible Causes of Swollen Feet

Deep Vein Thrombosis (DVT)

According to the Mayo Clinic, DVT occurs when a blood clot forms in a deep vein, usually in the legs. Symptoms can include swelling, heaviness, and more visible veins. This condition is dangerous because it can lead to a pulmonary embolism—a blockage in the lungs.

Achilles Tendonitis

The Achilles tendon is the body’s strongest tendon and plays a key role in movement. When it becomes inflamed, it can cause pain, stiffness, and swelling, especially in the ankles and heels after physical activity.

Osteoarthritis

As the most common form of arthritis, osteoarthritis can lead to joint pain, stiffness, and swelling in the feet. Regular movement, such as yoga, may help relieve discomfort.

Heart Failure

Swollen feet can be an early sign of heart failure. When the heart struggles to pump blood effectively, fluid can build up in the legs, feet, and ankles—a condition known as edema.

Lymphedema

Lymphedema results from excess lymphatic fluid collecting in a limb, causing swelling. If you experience rapid or severe swelling, particularly with pain, seek medical attention immediately.