Non-alcoholic fatty liver disease

Also called NAFLD, MASLD, or Fatty liver

Non-alcoholic fatty liver disease (NAFLD), now also called MASLD, is a build-up of fat in the liver in people who drink little or no alcohol. It is very common and is linked to being overweight, type 2 diabetes, high blood pressure and high cholesterol. Early stages usually cause no harm, but in some people it leads to inflammation, scarring and cirrhosis.

Last updated Nov 9, 2026

What it is

It is often found by chance on blood tests or an ultrasound.

Losing weight, eating healthily, being active and controlling diabetes and cholesterol can reduce liver fat and even reverse scarring in early stages.

Common signs

  • Usually no symptoms
  • Tiredness
  • Discomfort in the upper right tummy

How it is usually diagnosed

  • Liver blood tests
  • Ultrasound scan
  • Fibrosis scores and liver stiffness scans (elastography)

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Liver function results over time
  • Ultrasound and elastography reports
  • Fibrosis scores
  • Weight records

Questions to ask your doctor

  • Is there any scarring in my liver?
  • How much weight should I aim to lose?
  • How often should my liver be checked?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Yellow skin or eyes, vomiting blood, black poo or a swollen tummy: get urgent medical help

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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