Swollen legs: what could it mean? Common causes you should never ignore.

Swollen legs are often dismissed as a temporary discomfort caused by standing for too long or fatigue after a busy day. But in some cases, leg swelling can be a warning signal from your body that something is going on internally.

From circulation problems to conditions of the heart, kidneys, or blood vessels: persistent swelling in the legs should never be ignored, especially if it appears suddenly, becomes painful, or worsens over time.

Why do the legs swell up?

Leg swelling, medically known as edema, occurs when excess fluid becomes trapped in the body’s tissues. It can affect the feet, ankles, calves, or entire legs and can occur in one or both legs.

Sometimes the cause is harmless and temporary. Other times, it may indicate an underlying health problem that requires medical attention.

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1. Poor blood circulation

One of the most common causes of swollen legs is poor circulation. When blood cannot flow back to the heart properly, fluid can accumulate in the lower legs and ankles.

This often occurs after prolonged sitting or standing and can worsen with age.

Common symptoms include:

• Heavy or tired legs
• Visible veins
• Mild discomfort or a feeling of tightness
• Swelling that decreases after rest

2. Excessive salt intake

Excessive sodium intake can lead to the body retaining fluid, which can cause swelling and fluid retention in the legs, feet, and ankles.

Processed foods, fast food, canned soups and sauces, and packaged snacks are often full of hidden salt.

Reducing sodium intake and drinking enough water can help relieve mild swelling.

3. Varicose veins

Varicose veins develop when weakened vein valves cause blood to pool in the legs instead of flowing efficiently upwards.

This condition can cause the following symptoms:

• Swollen ankles
• Painful or burning sensations
• Bulging blue or purple veins
• Heavy feeling in the legs

Prolonged standing can worsen the symptoms.

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4. Heart problems

Swelling in both legs can sometimes indicate that the heart is not pumping blood properly. When blood circulation slows, fluid can accumulate in the lower body.

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