In some cases, a liver biopsy is considered. This involves obtaining a small tissue sample for examination. It is not required for every patient, and the decision depends on whether the result is likely to clarify the diagnosis or influence treatment.
Screening for viral hepatitis and other causes
Chronic hepatitis B and hepatitis C can cause progressive liver injury, sometimes over many years. Testing can identify infection, and effective treatments are available for many people with these conditions.
Other investigations may be appropriate when clinicians suspect autoimmune liver disease, inherited metabolic disorders, alcohol-associated injury, medication-related damage, or bile duct conditions.
The appropriate testing strategy depends on the person's age, medical history, risk factors, symptoms, and initial findings.
Early diagnosis is particularly valuable because treatment may prevent further injury even when a person feels relatively well.
Treating metabolic fatty liver disease
Metabolic dysfunction-associated steatotic liver disease is closely linked to metabolic factors such as excess body weight, insulin resistance, type 2 diabetes, and abnormal blood lipids, although it can also occur in people without obesity.
For people who have excess weight, sustained and appropriate weight reduction can improve liver fat and, in some cases, inflammation and fibrosis. The amount of benefit varies according to the person and the stage of disease.
Regular physical activity, a balanced eating pattern, improved diabetes management, and treatment of cardiovascular risk factors can also help.
There is no single diet that works for everyone. A sustainable pattern emphasizing vegetables, fruit, whole grains, legumes, appropriate protein sources, and unsaturated fats is generally more useful than extreme restrictions or unverified detox programs.
Some patients may be eligible for specific medicines depending on their diagnosis, fibrosis stage, and local treatment guidelines. Decisions about medication should be made with a clinician familiar with the patient's condition.
Treating alcohol-associated liver disease
Alcohol can cause liver injury, and continued exposure may worsen existing disease. For people with alcohol-associated liver disease, stopping alcohol is an important part of treatment.
However, someone who is physically dependent on alcohol should seek medical support before attempting abrupt withdrawal. Alcohol withdrawal can be dangerous and may require supervised treatment.
Healthcare professionals can provide support for alcohol use disorder and help manage withdrawal symptoms when necessary. Nutritional assessment and treatment of complications may also be important.
Reducing or stopping alcohol exposure can improve outcomes, but the degree of recovery depends on the severity of existing injury and whether cirrhosis or other complications have developed.
Treating hepatitis and medication-related injury
Chronic hepatitis B can often be controlled with antiviral medication, although treatment decisions depend on the stage of infection and individual circumstances. Hepatitis C can be cured in most treated patients using modern direct-acting antiviral medicines.
Medication-related liver injury requires careful assessment of the suspected substance and the pattern of damage. A clinician may discontinue or replace a suspected medicine when appropriate and investigate other potential causes.