Liver Disease: Red Flags and Easy-to-Miss Symptoms
- Liver damage frequently develops quietly over time, often remaining undetected until a formal medical diagnosis is made.
- Research published in Hepatology Communications found that approximately 96 percent of adults were unaware they had nonalcoholic fatty liver disease.
- Liver disease is an umbrella term that encompasses several different conditions that impair the function of the liver.
Liver damage frequently develops quietly over time, often remaining undetected until a formal medical diagnosis is made. Because the progression is often silent, many individuals are unaware of their health status, which can make a eventual diagnosis feel sudden despite the condition having developed over a long period.
The scale of this awareness gap is significant. Research published in Hepatology Communications found that approximately 96 percent of adults were unaware they had nonalcoholic fatty liver disease.
Defining Liver Disease
Liver disease is an umbrella term that encompasses several different conditions that impair the function of the liver. These conditions can lead to ongoing injury or damage that interferes with the organ’s ability to perform its essential roles.

Liver disease refers to any condition which causes ongoing injury or damage to the liver, which in turn can affect critical functions
Joseph Lim, MD, director of clinical hepatology and digestive diseases at Yale School of Medicine
The liver is necessary for a wide array of biological processes. According to the Mayo Clinic, the organ is required to help the body digest food and rid the system of waste products.
Critical Functions of the Liver
The liver performs several critical functions that sustain overall health. One of its primary roles is the filtration of toxins from the body.
It is also responsible for the metabolism of nutrients, specifically proteins, carbohydrates, and fats. The liver manages the storage of energy by converting glucose into glycogen.
The organ produces bile, which is essential for the processing of fats and fat-soluble vitamins. It also produces essential proteins that are necessary for the immune system and the clotting of blood.
The Mayo Clinic notes that the liver produces substances called clotting factors, which are vital for keeping blood flowing properly.
Causes and Types of Liver Damage
Various factors can lead to liver problems. Some forms of liver disease are inherited and can be passed through families.
Other causes include the use of alcohol, obesity, and various viruses. Anything that damages the liver has the potential to cause liver problems.
One specific type of liver condition is metabolic dysfunction-associated steatotic liver disease, which is also known as fatty liver disease. This condition is closely linked to obesity, diabetes, and other metabolic conditions.
The Challenge of Early Detection
Detecting liver disease early can be difficult because symptoms are often subtle and easy to miss. These red flags may be overlooked or mistaken for other health issues, allowing the damage to progress under the radar.
To improve early identification, new blood tests have been developed. These tests may be able to predict the risk of liver disease years before physical symptoms start to manifest.
