Serious diseases that cause swelling of the feet

Swelling of the feet, also known as peripheral edema, can be caused by various serious medical conditions. Some of these include:

1. Heart failure: When the heart is unable to pump blood efficiently, fluid can accumulate in the legs and feet, leading to swelling.

2. Kidney disease: Impaired kidney function can result in the retention of salt and water in the body, leading to swelling in the feet and ankles.

3. Liver disease: Conditions such as cirrhosis can lead to fluid buildup in the abdomen, which can in turn cause swelling in the legs and feet.

4. Deep vein thrombosis (DVT): This is a blood clot that forms in a deep vein, usually in the legs. DVT can cause swelling, pain, and redness in the affected leg.

5. Lymphedema: This condition occurs when the lymphatic system is impaired, leading to fluid buildup and swelling, usually in the legs or arms.

6. Chronic venous insufficiency: When the veins in the legs are unable to efficiently return blood to the heart, fluid can leak into the surrounding tissues, causing swelling.

7. Infection: Certain infections, such as cellulitis or osteomyelitis, can cause inflammation and swelling in the affected area, including the feet.

8. Peripheral artery disease (PAD): Reduced blood flow to the legs due to narrowed arteries can cause swelling, particularly after prolonged periods of standing or walking.

9. Hypothyroidism: An underactive thyroid gland can lead to fluid retention and swelling in various parts of the body, including the feet.

10. Diabetes: Uncontrolled diabetes can damage blood vessels and nerves, leading to poor circulation and fluid retention, which may manifest as swelling in the feet and ankles.

It's important to note that swelling of the feet can also be caused by less serious factors such as prolonged standing or sitting, pregnancy, or certain medications. However, if you experience persistent or severe swelling, especially if it's accompanied by other symptoms such as chest pain, difficulty breathing, or changes in urination, it's crucial to seek medical attention promptly, as it could indicate an underlying serious condition.