On World Kidney Day 2025, a number one knowledgeable addresses widespread questions on kidney illness, providing insights on causes, danger elements, signs, and potential issues related to the situation.
Kidney illness won’t be one thing we regularly take into consideration, however it’s truly one of many main causes of demise worldwide. Based on the Nationwide Kidney Basis, about 10 p.c of individuals globally undergo from power kidney illness (CKD), and hundreds of thousands lose their lives to it annually. The primary job of kidneys is to take away toxins and extra water from the blood. In addition they assist management blood strain and even hold your bones robust. When they’re broken, they can’t do these jobs correctly, resulting in kidney illness. In actual fact, when you’ve got diabetes or hypertension, you usually tend to develop kidney issues. Additionally, if any kidney illness progresses to failure, therapies like dialysis or perhaps a transplant could also be wanted. If you wish to know extra about kidney illnesses, we have now solutions from India’s prime nephrologist.
Widespread questions on kidney illnesses
On World Kidney Day 2025, Well being Pictures interviewed nephrologist Dr Bharat Shah, who has greater than 30 years of expertise. He answered a few of the commonest questions on kidney illnesses to assist us all higher perceive kidney well being and the way it features.
Query 1: About 9 in 10 adults with kidney illness don’t even know they’ve it. So, what are the widespread indicators which may level to kidney illness?
Dr Bharat Shah: Kidney illness usually doesn’t present signs in its early levels, which is why so many individuals are unaware they’ve it. Nonetheless, if the illness progresses or isn’t managed correctly, you would possibly begin noticing some signs, together with:
- Unexplained weight reduction and lack of urge for food
- Swelling in your ankles, ft, or arms attributable to water retention
- Shortness of breath
- Persistent tiredness
- Blood in your urine
- Frequent must urinate, particularly at evening
- Issue sleeping
- Itchy pores and skin
- Muscle cramps
- Feeling nauseous or sick
- Complications
- Erectile dysfunction in males
You will need to have common checkups, as early analysis can assist stop the illness from worsening. In the event you discover any of those signs, you’ll want to seek the advice of a physician for additional analysis.

Query 2: Kidney illness is among the main causes of demise worldwide. So, what are the most typical causes?
Dr Bharat Shah: That’s proper. Kidney illness is a serious well being concern, as per the World Well being Group. The commonest causes are long-term diabetes and uncontrolled hypertension, particularly when these situations go untreated for years. Different causes embrace situations like Glomerulonephritis (irritation of the kidney’s filtering items), kidney stones, drug-induced kidney injury, and kidney cysts. Over time, these situations can result in power kidney illness (CKD) and, ultimately, kidney failure. Poor life-style selections, like an unhealthy food plan, lack of train, and smoking, also can elevate your danger of growing kidney issues.
Query 3: Who’s in danger for power kidney illness (CKD), and what are some issues?
Dr Bharat Shah: A number of elements can put you at a better danger for CKD. If in case you have diabetes, hypertension, coronary heart illness, or a household historical past of kidney points, your possibilities of growing CKD enhance. Moreover, being overweight, smoking, or following an unhealthy food plan also can elevate the chance. Age is one other issue—your danger goes up as you grow old. In case your kidneys usually are not functioning properly, it might result in issues like anemia, weak bones, fluid retention, gout, coronary heart illness, and hypertension. Managing these danger elements early can assist scale back the possibilities of growing CKD and its issues.
Query 4: What are the different sorts and causes of kidney illness?
Dr Bharat Shah: Kidneys play a vital position in filtering out waste and extra fluid from our blood, which is why we can not reside with out them. There are a number of forms of kidney illnesses, every with completely different causes and results. A few of the commonest ones embrace:
- Continual kidney illness (CKD): An extended-term situation the place the kidneys regularly lose their operate.
- Kidney stones: Exhausting deposits that kind within the kidneys and may trigger extreme ache.
- Glomerulonephritis: Irritation of the kidney’s filtering items, which may have an effect on kidney operate.
- Polycystic kidney illness: A genetic situation the place fluid-filled cysts develop within the kidneys.
- Urinary tract infections (UTIs): Infections that may unfold to the kidneys if left untreated.
- Kidney failure: When the kidneys cease working solely and dialysis or a transplant is required.
Query 5: How can diabetes injury the kidneys?
Dr Bharat Shah: Diabetes is definitely the main explanation for kidney illness. Round 1 in 3 adults with diabetes develop kidney issues, in keeping with the Nationwide Institute of Diabetes and Digestive and Kidney Illnesses. Excessive blood sugar ranges from poorly managed diabetes can injury the tiny blood vessels within the kidneys, making it tougher for them to filter waste. Over time, this injury can result in a situation known as diabetic nephropathy, the place the kidneys slowly lose their potential to operate correctly. If diabetes isn’t properly managed, it might progress to kidney failure, and coverings like dialysis or a kidney transplant could also be wanted.
Query 6: What are the dangers of untreated kidney illness?
Dr Bharat Shah: If it’s not handled, it might advance to kidney failure, which requires therapies like dialysis or a transplant. But it surely doesn’t cease there—untreated kidney issues also can enhance the chance of different severe situations like heart problems, hypertension, and even worsening diabetes. The important thing to managing kidney illness is early detection and common monitoring, which can assist stop issues and hold the kidneys functioning in addition to doable.
Query 7. What forms of checks can assist diagnose kidney illness?
Dr Bharat Shah: The tough factor about kidney illness is that many individuals don’t understand they’ve it till it has already progressed as a result of there are sometimes no noticeable signs within the early levels. Because of this common testing is so vital, particularly in case you are at increased danger attributable to elements like diabetes, hypertension, or a household historical past of kidney issues. To diagnose kidney illness, medical doctors sometimes use blood checks, just like the serum creatinine check, to test how properly your kidneys are working. Urine checks also can assist by on the lookout for protein or blood in your urine, that are indicators of kidney injury. Moreover, imaging checks like ultrasounds or CT scans may give medical doctors a better take a look at kidney well being and any abnormalities.

Query 8. What occurs if kidneys fail to operate?
Dr Bharat Shah: Kidney failure, or end-stage renal illness (ESRD), is a severe situation that happens when the kidneys can now not filter waste, take away extra fluid, or stability your physique’s electrolytes successfully. When this occurs, toxins construct up within the physique, which may trigger signs like swelling, fatigue, shortness of breath, and confusion. Kidney failure additionally places you at a better danger of coronary heart illness and stroke. Based on the Nationwide Kidney Basis, different issues that may come up from kidney failure embrace:
- Anemia (low purple blood cell depend)
- Metabolic acidosis (an imbalance of acid within the blood)
- Mineral and bone issues (which may have an effect on your bones and coronary heart)
- Hyperkalemia (excessive potassium ranges within the blood)
If kidney failure happens, there are two predominant remedy choices: dialysis, which helps filter your blood artificially, or a kidney transplant, the place a wholesome kidney from a donor is transplanted into your physique.
Query 9: One in ten folks is affected by power kidney illness (CKD), and hundreds of thousands die yearly from it. Is it doable to forestall kidney illness?
Dr Bharat Shah: Sure, kidney illness can usually be prevented, or at the least its development slowed, by making some easy however impactful life-style modifications. The secret is managing situations like diabetes and hypertension, staying energetic, consuming a kidney-friendly food plan, and avoiding smoking. Listed below are some ideas you’ll be able to observe to forestall CKD:
- Drop some weight in case you are chubby or overweight.
- Keep energetic, as common train helps management blood sugar ranges.
- In the event you smoke, quitting is among the greatest issues you are able to do on your kidney well being.
- Take your prescribed drugs as directed.
- Maintain your levels of cholesterol in test.
- Cut back your salt consumption and deal with consuming extra vegetables and fruit.
- Restrict alcohol consumption, as it might elevate blood strain.
- Be certain that to get your flu shot yearly—folks with CKD are at increased danger for extreme flu issues.
- Small modifications like these could make a giant distinction in your kidney well being over time.
Query 10. What’s a kidney-friendly food plan?
Dr Bharat Shah: A kidney-friendly food plan focuses on meals that scale back the pressure in your kidneys. This consists of low-sodium, low-protein, and low-potassium meals. Greens like cauliflower, bell peppers, and cabbage, together with fruits like apples, berries, and grapes, are nice choices. Entire grains like oats and quinoa present fibre with out overwhelming the kidneys. Keep away from high-sodium meals like processed snacks and canned soups, and scale back protein consumption, particularly from animal sources.
Now that you’ve the solutions to all of the vital questions on kidney illnesses, ensure you care for your kidneys and total well being.