Common Causes of Swollen Hands and Feet
1. Fluid Retention (Edema)
The most frequent cause of swelling is simple fluid buildup, often due to:
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Sitting or standing too long (especially in hot weather)
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Too much salt in your diet
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Not drinking enough water
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Hormonal changes, like during menstruation or pregnancy
You might notice the swelling is worse at the end of the day and improves after elevating your legs or resting.
2. Poor Circulation
If your blood isn’t circulating properly, fluid can pool in your extremities. This is often due to:
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Heart problems, such as congestive heart failure
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Varicose veins or damaged valves in the legs
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Deep vein thrombosis (DVT) – a blood clot, usually in the leg
In these cases, swelling is usually more noticeable in the legs and may come with heaviness or aching.
3. Kidney or Liver Issues
Your kidneys and liver help balance fluid and remove waste from your body. If they’re not working well:
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The kidneys may allow fluid and sodium to build up.
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A damaged liver (e.g., from cirrhosis or hepatitis) can reduce protein levels in the blood, causing fluid to leak into tissues.
This kind of swelling may be more persistent and generalized, not just in hands or feet.
4. Lymphedema
Your lymphatic system drains fluid from tissues. If it’s blocked or damaged—due to surgery, infection, or cancer treatment—lymph fluid can accumulate, leading to chronic swelling, especially in one arm or leg.
Signs of lymphedema include:
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A feeling of tightness or heaviness
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Reduced range of motion
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Thick or hardened skin over time
5. Medication Side Effects
Several medications can cause swelling as a side effect:
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Calcium channel blockers (for high blood pressure)
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Steroids
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Hormone treatments (like estrogen or testosterone)
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Diabetes drugs (such as pioglitazone)
Always check with your doctor before adjusting your medication.
6. Injuries and Inflammation
Swelling is a natural response to injury or inflammation. Common causes include:
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Sprains or fractures
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Insect bites or infections
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Arthritis (e.g., rheumatoid arthritis, osteoarthritis, or gout)
In these cases, swelling is usually localized, may appear suddenly, and is often accompanied by pain, redness, or warmth.
7. Pregnancy
Mild swelling in the hands and feet is normal during pregnancy, especially in the third trimester. But if it’s sudden or severe, or comes with high blood pressure or headaches, it may indicate preeclampsia, a serious condition requiring immediate medical care.
