The liver is one of the hardest-working organs in the human body. It performs hundreds of important jobs every day to keep us healthy.
It removes harmful toxins from the blood, helps digest food by producing bile, stores vitamins and minerals, regulates blood sugar, and makes proteins that the body needs for blood clotting and many other functions.
Because the liver carries out so many vital tasks, damage to this organ can affect almost every part of the body. When liver damage becomes severe, the organ may no longer be able to do its job properly. This condition is known as liver failure, and without treatment it can become life-threatening.
Liver failure can develop in two different ways. Acute liver failure happens very quickly, sometimes within days or weeks, often because of severe infections, poisoning, or an overdose of certain medicines such as acetaminophen. Chronic liver failure develops slowly over many years.
It is usually caused by long-term liver diseases such as hepatitis, cirrhosis, fatty liver disease, or liver cancer. The encouraging news is that many cases of liver disease can be treated or slowed if they are found early. Knowing the warning signs may help people seek medical care before permanent damage occurs.
One of the best-known signs of liver disease is jaundice. Jaundice causes the skin and the whites of the eyes to turn yellow. This happens because the liver cannot properly remove bilirubin, a yellow waste product made when old red blood cells break down. As bilirubin builds up in the blood, the skin and eyes begin to change color.
Another common warning sign is feeling unusually tired or weak for long periods. A damaged liver cannot remove waste products efficiently, allowing toxins to build up in the body. These toxins can leave people feeling exhausted even after getting enough rest.
Many people with liver disease also lose their appetite or feel sick after eating. Nausea, vomiting, and unexplained weight loss may occur because the liver is struggling to process nutrients and other substances. Some people also notice pain or discomfort in the upper right side of the abdomen, where the liver is located.
Swelling is another important symptom. The liver normally makes a protein called albumin that helps keep fluid inside blood vessels. When the liver produces less albumin, fluid can leak into nearby tissues. This often causes swelling in the feet, ankles, and legs. Fluid may also collect inside the abdomen, causing a swollen belly, a condition known as ascites.
Changes in urine and stool color can also be warning signs. Urine may become very dark, while stools may become pale or clay-colored. These changes happen because the liver is no longer processing bilirubin normally.
Some people bruise or bleed much more easily than usual. This is because the liver produces proteins that help blood clot. When the liver cannot make enough of these proteins, even small injuries may lead to excessive bruising or bleeding.
As liver disease becomes more severe, toxins that are normally removed by the liver can reach the brain. This may cause confusion, memory problems, poor concentration, personality changes, sleepiness, or even loss of consciousness. These symptoms require immediate medical attention.
People who have risk factors should pay particular attention to these warning signs. Risk factors include heavy alcohol use, obesity, type 2 diabetes, viral hepatitis, long-term use of certain medications, and a family history of liver disease. Regular medical check-ups can help detect liver problems before symptoms become serious.
Doctors use several tests to check liver health. Blood tests measure liver enzymes and proteins to see how well the liver is working. Imaging tests such as ultrasound, CT scans, or MRI scans can show changes in the liver’s size and structure. In some cases, doctors perform a liver biopsy by removing a tiny sample of tissue to examine under a microscope.
The best way to protect your liver is through healthy daily habits. Eating a balanced diet, maintaining a healthy weight, limiting alcohol, avoiding illegal drugs, using medicines only as directed, getting vaccinated against hepatitis when appropriate, and attending regular health checks can all help reduce the risk of liver disease.
If you notice yellow skin, ongoing tiredness, swelling, unusual bruising, dark urine, pale stools, or other symptoms of liver problems, do not ignore them. Early diagnosis and treatment can often slow or prevent further damage and may even save your life.
If you care about liver health, please read studies about simple habit that could give you a healthy liver, and common diabetes drug that may reverse liver inflammation.
For more information about health, please see recent studies about simple blood test that could detect your risk of fatty liver disease, and results showing this green diet may strongly lower non-alcoholic fatty liver disease.
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