How to Know If Your Kidneys Are Not Working Properly
How to Know If Your Kidneys Are Not Working Properly Most people don’t think about their kidneys until something goes wrong. And that’s exactly the problem. Your kidneys work quietly, around the clock — filtering your blood, balancing fluids, regulating blood pressure, and removing waste. They rarely complain. But when they begin to struggle, they do send signals. The trouble is, those signals are easy to miss or mistake for something far less serious. In India, nearly 17% of the adult population has some form of kidney disease, and the majority don’t know it until the disease has already progressed. Knowing how to tell if your kidneys are not working properly could genuinely save your life or the life of someone you love. What Your Kidneys Are Quietly Doing Every Day Before recognising when something is wrong, it helps to understand what healthy kidneys do. You have two kidneys — each roughly the size of a fist — sitting in your lower back on either side of your spine. Every single day, they filter approximately 180 litres of blood, pulling out waste products, extra fluid, and toxins, which then leave the body as urine. But filtering is only part of the picture. Your kidneys also: Control blood pressure by producing a hormone called Renin Balance electrolytes — keeping sodium, potassium, and calcium at healthy levels Stimulate red blood cell production through a hormone called Erythropoietin Activate Vitamin D to protect your bones Keep your blood’s pH stable — preventing it from becoming too acidic When kidneys are not working properly, all of these functions begin to falter — often simultaneously, and often silently. How to Know If Your Kidneys Are Not Working Properly? Swelling in the Face, Feet, or Legs When the kidneys can’t remove excess fluid from the body, it collects in the tissues. You might notice puffiness around your eyes first thing in the morning, swollen ankles by the end of the day, or a ring that suddenly feels too tight. This is called Edema, and it tends to come on gradually, which is exactly why people blame it on too much salt or a long day on their feet. When it keeps returning without a clear reason, your kidneys deserve a closer look. Foamy or Frothy Urine Normal urine doesn’t foam persistently. If yours does, it typically means that protein is leaking into the urine — a condition called Proteinuria. Healthy kidneys keep protein locked in the bloodstream. Damaged kidneys let it slip through. This is one of the clearest early signals kidney disease can give you. Don’t dismiss it. Persistent Fatigue That Rest Doesn’t Fix When kidneys are not working properly, waste products like creatinine and urea build up in the bloodstream. The kidneys also produce less Erythropoietin, which leads to anaemia — fewer red blood cells carrying oxygen to the muscles and brain. The result is a deep, pervasive tiredness that no amount of sleep seems to touch. If you’ve been exhausted for weeks without a clear reason, kidney function is worth checking. Puffiness Around the Eyes Many patients notice puffiness around the eyes, particularly in the morning. This can occur when the kidneys leak protein into the urine instead of retaining it in the bloodstream. Protein loss may be an early sign of kidney damage. High Blood Pressure That Won’t Come Down The kidneys and blood pressure are tightly linked. Damaged kidneys lose their ability to regulate blood pressure, and high blood pressure, in turn, causes more kidney damage. It’s a cycle. If your blood pressure stays persistently elevated despite medication, your kidneys may be contributing to the problem. Shortness of Breath Excess fluid can back up into the lungs when the kidneys fail to clear it — a condition called Pulmonary Oedema. This causes breathlessness, often worsening when lying flat. It can also be related to anaemia, where reduced red blood cells leave the body oxygen-starved. Either way, unexplained breathlessness alongside other kidney symptoms is a reason to seek urgent care. Common Causes of Kidney Problems Several medical conditions can affect kidney function. Diabetes Diabetes is one of the leading causes of kidney disease worldwide. High blood sugar levels can gradually damage the small blood vessels inside the kidneys. High Blood Pressure Long-term uncontrolled hypertension can weaken kidney function and increase the risk of kidney failure. Kidney Infections Repeated infections can cause permanent damage if not treated promptly. Kidney Stones Large or recurrent kidney stones may block urine flow and affect kidney health. Autoimmune Diseases Conditions such as lupus can cause inflammation and damage to kidney tissues. Certain Medications Long-term misuse of some painkillers and medications may negatively affect kidney function. Your Kidneys Work Hard for You—Make Sure You Care for Them Too Your kidneys play a vital role in keeping your body healthy every day. Paying attention to early warning signs and seeking medical advice when symptoms appear can make a significant difference. Regular health check-ups, healthy lifestyle habits, and timely treatment can help protect your kidneys and support long-term well-being. If you have concerns about your kidney health, don’t wait to seek professional guidance from expert kidney transplant Specialist Dr Chandan Chaudhari.