Kidney failure significantly increases the risk of death, with mortality rates varying widely by type (acute vs. chronic) and treatment, but it's a major contributor to deaths, especially in Australia where it's linked to over 10% of fatalities. While advancements allow many to live with chronic kidney disease (CKD) through dialysis or transplant, those with End-Stage Renal Disease (ESRD) face a poorer prognosis (e.g., ~35% 5-year survival on dialysis). Acute kidney injury (AKI) has high hospital mortality (up to 50%), but many recover, though some develop CKD.
Your kidneys filter wastes and excess fluids from your blood, which are then excreted in your urine. When your kidneys lose their filtering abilities, dangerous levels of fluid, electrolytes and wastes can build up in your body. With end-stage renal disease, you need dialysis or a kidney transplant to stay alive.
Acute kidney injury (AKI) is a term used to describe when your kidneys are suddenly not able to filter waste products from the blood. This can happen within a few hours or a few days. For most people, AKI develops within 48 hours, but sometimes it can take as long as 7 days.
The findings revealed that about 14 percent of adults in the world have chronic kidney disease. Results further showed that about 1.5 million people died from the condition in 2023, an increase of more than 6 percent since 1993 when accounting for differences in countries' age demographics over time.
Kidney failure, also called renal failure, is when your kidneys no longer work well enough to keep you alive. Acute kidney failure is when you lose kidney function quickly and your kidney function can recover over time. Chronic kidney failure results from kidney damage that develops slowly and cannot be reversed.
Diabetes and high blood pressure are the top culprits damaging kidneys most, as they harm the delicate filtering blood vessels, leading to chronic kidney disease (CKD) and failure; other major factors include smoking, obesity, dehydration, poor diet (high sugar/salt/red meat), certain medications (NSAIDs), lack of sleep, and genetic conditions. These factors create a cycle where damaged kidneys worsen blood pressure, further damaging them.
An estimated 37 million people (twice the population of New York) live with chronic kidney disease. It is known as “the silent killer” because there are usually no symptoms until the late stages of the disease when dialysis or a kidney transplant may be needed.
Sleep disorders, are common in people with chronic kidney disease and end stage renal disease. In addition to insomnia, sleep-disordered breathing, excessive sleepiness, and restless leg syndrome many have a high incidence of sleep apnea and periodic limb movements in sleep.
Kidney disease can affect anyone at any age. Babies can be born with kidneys that haven't developed normally or don't function normally. Genetic alterations can result in kidney diseases developing during childhood or later in life. Other types of kidney disease can develop at any age.
Kidney failure can also develop quickly because of an unexpected cause. Acute kidney failure (acute kidney injury) is when your kidneys suddenly lose their ability to function. Acute kidney failure may develop within hours or days. It's often temporary.
Stress and uncontrolled reactions to stress can also lead to kidney damage. As the blood filtering units of your body, your kidneys are prone to problems with blood circulation and blood vessels. High blood pressure and high blood sugar can place an additional strain or burden on your kidneys.
When chronic kidney disease becomes advanced, loss of kidney function can cause:
Patients may experience a wide variety of symptoms as kidney failure progresses. These include fatigue, drowsiness, decrease in urination or inability to urinate, dry skin, itchy skin, headache, weight loss, nausea, bone pain, skin and nail changes and easy bruising.
Key Warning Signs That You May Need Dialysis Soon
The good news is that acute kidney failure can often be reversed.
diabetes – too much glucose in your blood can damage the tiny filters in the kidneys. high cholesterol – this can cause a build-up of fatty deposits in the blood vessels supplying your kidneys, which can make it harder for them to work properly. kidney infections. glomerulonephritis – kidney inflammation.
You can check kidney function at home using at-home test kits for urine (detecting protein/albumin) or finger-prick blood tests (checking creatinine/eGFR), often with smartphone apps for analysis, or by monitoring symptoms like increased nighttime urination (nocturia), swelling, or changes in urine (blood, foam) and discussing results with a doctor, as home tests screen but don't replace professional diagnosis.
In addition to dialysis treatments, people with kidney failure may need to limit salt, phosphorus, potassium, and fluid intake. They may also need to eat more high-protein foods as protein can be removed during the dialysis process. Learn more about diet and hemodialysis or peritoneal dialysis.
Kidney damage can happen when using Ozempic, especially if you have nausea, vomiting, or diarrhea, which can cause dehydration. Try to drink water to avoid dehydration. Call your healthcare provider right away if you have any of the following symptoms of kidney damage. Severe Stomach Problems.
While kidney failure is terminal without treatment, there are options to manage the condition and make you feel better, helping you live as long as possible. There are two different treatments for kidney failure: dialysis and a kidney transplant.
1. Less Energy or Trouble Concentrating. A severe decrease in kidney function can lead to a buildup of toxins and impurities in the blood. This can cause people to feel tired or weak and can make it hard to concentrate.
Dehydration reduces blood flow to your kidneys and can actually significantly damage them. Smoking is a bad habit that we know you can quit. Your body will thank you week after week, and you will keep it away from many dangers. Excessive alcohol consumption can severely damage your kidneys.
Itching often happens on both sides of the body at the same time (for example, both arms or both legs). Itching is most common and severe in people with kidney failure,but those in the earlier stages of CKD may also notice milder itching.
Kidney Failure Skin Color
One common change is a yellowing of the skin, known as jaundice. This is caused by a buildup of bilirubin, a waste product that is normally excreted by the liver. Jaundice can cause the skin and whites of the eyes to turn yellow.