Persistent swelling in the legs can be a sign of fluid retention in the body. This condition develops when blood and lymph circulation are not proper.

Our feet not only support our body's weight, but they also often provide early warning signs of serious health problems. According to doctors, many heart, kidney, diabetes, and nerve problems first manifest as mild changes in the feet. Therefore, ignoring these signs can be costly.

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Persistent swelling in the legs can be a sign of fluid retention. This condition develops when blood and lymph circulation are impaired. Doctors say it could be a sign of heart failure, kidney failure, or a liver problem. If you suddenly experience swelling, pain, and warmth in just one leg, it could be a sign of a blood clot, known as deep vein thrombosis, which is very dangerous. In such a condition, a doctor should immediately seek medical attention.

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If your feet remain cold despite normal weather, it could be a sign of poor blood circulation. This problem may be linked to peripheral artery disease, a condition in which the arteries in your legs become narrowed. This can increase the risk of a heart attack and stroke. This problem is more common in people with thyroid problems, anemia, and smokers.

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Suddenly, sharp pain and cramps in the calf or foot while sleeping aren't just a sign of fatigue. They could be a symptom of nerve, kidney, or circulation problems. Research suggests that frequent cramps may also be linked to heart disease and high blood pressure. If this problem continues to interfere with sleep, it's important to get tested.

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Red, brown, or darkening of the skin on the legs can be a sign of varicose veins. This condition occurs when blood pools in the veins and spreads beneath the skin. If not treated promptly, it can lead to bruising. People with diabetes and obesity are also at higher risk.

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Meanwhile, recurring numbness or tingling in the feet is a symptom of nerve damage. It's often associated with diabetes and blood circulation problems. Experts believe it could also be an early sign of heart disease.