Findings & conditions

What is Fatty Liver?

Also written as：Fatty Liver Disease ／ MASLD/NAFLD

Fatty liver is a condition in which excess triglycerides build up inside liver cells. It is typically identified by abdominal ultrasound or CT. There are two main types: alcohol-related fatty liver, and fatty liver caused by factors other than alcohol (formerly known as NAFLD/NASH, increasingly reclassified as MASLD/MASH in recent years). In some cases, the condition can progress to hepatitis or cirrhosis.

How to interpret an out-of-range result

If fatty liver is identified, it is evaluated together with liver function markers such as γ-GTP, AST, and ALT, as well as body weight, blood glucose, and lipid levels. The primary approach is lifestyle modification, including dietary changes, regular exercise, and reducing alcohol intake.

Related tests and conditions

Find facilities for Abdominal Ultrasound (Abdominal Echo)Find facilities for CT (Computed Tomography)About Type 2 Diabetes

Frequently asked questions

Is it safe to leave fatty liver untreated?

In many cases, fatty liver improves with lifestyle changes. However, in some individuals it can progress to hepatitis or cirrhosis. It is important to consult a physician and monitor the condition based on liver function values and the underlying cause.

Sources & references

日本消化器病学会・日本肝臓学会 NAFLD/NASH（MASLD/MASH）診療ガイドライン

This page provides general information only and is not intended for diagnosis or treatment. Please consult the physician at your chosen facility regarding the interpretation of your health checkup results.

Other terms in Findings & conditions

Metabolic Syndrome Hypertension (High Blood Pressure)Dyslipidemia Helicobacter pylori Infection (H. pylori)Colon Polyp Dense Breast (High Breast Density)Lung Nodule (Pulmonary Nodule)Arrhythmia White-Coat Hypertension Masked Hypertension Mild Cognitive Impairment (MCI)Chronic Kidney Disease (CKD)