The kidneys are often overlooked but vital organs for the proper functioning of our body. They eliminate toxins, regulate blood pressure, produce hormones such as erythropoietin (EPO), and maintain fluid balance. However, serious kidney diseases can develop for a long time without any apparent symptoms. It is therefore crucial to recognize the early warning signs of kidney dysfunction.
The main functions of the kidneys: The kidneys filter approximately 190 to 200 liters of blood per day. They produce hormones, including EPO, which stimulate the production of red blood cells. The kidneys also regulate blood pH, reabsorb certain essential substances such as potassium, glucose, and water, and modulate the amounts of minerals in our body.
Symptoms of Kidney Problems 1. Changes in Your Urine A change in color, odor, or frequency of urination, especially if it persists, is a potential warning sign. The presence of protein or bacteria in the urine is also a possible indicator of infection or kidney dysfunction.
2. Anemia. Poor kidney health can lead to decreased EPO production, resulting in reduced red blood cell production and anemia. This condition manifests as chronic fatigue and shortness of breath, even with minimal exertion.
3. Bone Demineralization: Insufficient kidney function can cause calcium deficiency, making bones more fragile. This occurs because malfunctioning kidneys produce less calcitriol, the active form of vitamin D that facilitates calcium absorption in the digestive system.
4. Edema When proteins such as albumin are excreted in the urine instead of being retained in the blood, this can lead to water retention in body tissues, causing swelling, particularly in the ankles, legs, or face.
5. Back Pain Although kidney disease is often silent, lower back pain can signal kidney stones or a kidney infection. This pain can radiate to other areas of the body.
6. Skin itching. High phosphorus levels or a buildup of toxins in the blood due to kidney failure can cause itching. These symptoms often appear in the later stages of the disease.
7. Nausea and vomiting. These symptoms can be caused by an accumulation of unfiltered metabolic waste products in the blood, such as uric acid, urea, and creatinine. This is known as uremia.
8. Breathing difficulties. Edema may appear in the lungs, thus compromising breathing. This condition requires immediate medical attention.
9. Loss of Appetite: A buildup of toxins can lead to a loss of appetite, as the body tries to minimize the additional intake of potential waste. This often manifests as a metallic or ammonia-like taste in the mouth.
Factors that worsen kidney health: Contrary to popular belief, high protein intake does not weaken healthy kidneys. However, dehydration, excessive sodium consumption, and persistent hyperglycemia can severely damage the kidneys.
People with high blood pressure or insulin resistance are particularly at risk and should pay attention to these symptoms. Maintaining good hydration, electrolyte balance, and blood glucose levels is therefore essential to preserving kidney health.
