Here is the uncomfortable thing about the signs of fatty liver disease: waiting for them is not a strategy. The condition affects roughly 38 percent of adults worldwide and usually produces nothing you would notice. Worse, in one series of 515 people with biopsy confirmed disease, those with completely normal liver enzymes had advanced scarring just as often as those with abnormal ones. So this article covers the symptoms that do occur, the ones that mean go now, and the free blood score that finds the problem when symptoms cannot.
Short answer: Early fatty liver is usually silent. When symptoms appear they are tiredness and dull discomfort under the right ribs, both too vague to diagnose anything. Jaundice, abdominal swelling, confusion or vomiting blood mean advanced disease and need urgent care. If you have type 2 diabetes, prediabetes or two metabolic risk factors, ask for a FIB-4 score rather than waiting to feel something.
Why Symptoms Are the Wrong Thing to Rely On
Three findings explain why this disease is so often found late, and they are worth understanding before reading any symptom list.
It is common and quiet. Metabolic dysfunction associated steatotic liver disease, or MASLD, the current name for what was called nonalcoholic fatty liver disease, affects around 38 percent of adults globally. Most have no symptoms at all. It is typically discovered by accident, through a blood test or a scan ordered for something else entirely.
Normal liver enzymes prove very little. This is the part people get wrong. In a study of 515 patients with biopsy confirmed fatty liver disease, 107 of them, about 21 percent, had normal liver enzymes. Their overall liver damage tended to be milder, but the rate of advanced fibrosis was similar in both groups. Another cohort found advanced fibrosis in 24 percent of those with normal ALT compared with 17 percent of those with raised ALT. A normal result on a routine liver panel does not rule out scarring.
Symptoms arrive late. The signs most people associate with liver disease, meaning yellow eyes, a swollen abdomen, confusion, are features of cirrhosis and decompensation. By definition they are not early warnings. They are the sound of the alarm long after the fire started.
None of that is a reason to panic. Fatty liver is common, often stable, and responds well to changes made early. It is a reason to check rather than wait, which is what the FIB-4 section below is about.
Early Signs of Fatty Liver Disease
These do occur, though none is specific to the liver. Take them as a prompt to get assessed, not as a diagnosis.
- Persistent tiredness. The most commonly reported symptom when there is one. Fatigue that does not improve with sleep. It is also caused by anaemia, thyroid problems, diabetes, sleep apnoea, depression and a dozen other things, which is exactly why it cannot stand alone.
- Dull discomfort under the right ribs. An ache, heaviness or pressure in the upper right abdomen, where the liver sits. May reflect an enlarged liver stretching its capsule. Also produced by the gallbladder, stomach, intestines and muscle.
- Feeling generally unwell. Low energy, poor concentration, mild nausea, not feeling yourself. Genuinely reported, genuinely useless on its own.
- An enlarged liver. Usually silent and found by a clinician on examination or on a scan rather than felt by you.
- Dark velvety skin patches. Around the neck, armpits, knuckles or elbows, called acanthosis nigricans. Not caused by liver fat but a visible marker of insulin resistance, which travels with it. Worth mentioning to a doctor because it points at the metabolic picture.
- Unexpectedly abnormal liver blood tests. Not a symptom, but often the first real clue. Raised ALT or AST should be investigated rather than repeated indefinitely and ignored.
Notice what these have in common. Every one of them is either vague or invisible. That is the whole problem.
Signs of Advanced Liver Disease
If fat progresses to inflammation, then scarring, then cirrhosis, the picture changes. These need prompt assessment, not a wait and see approach.
- Yellow skin or eyes. Jaundice, from bilirubin building up. Not a feature of uncomplicated fatty liver, so its appearance suggests advanced damage or a separate problem with the liver or bile ducts.
- Abdominal swelling. Fluid collecting in the abdomen, called ascites, producing a tight or steadily enlarging belly. Different from ordinary bloating, which comes and goes.
- Swollen ankles and legs. Oedema, partly from reduced protein production. Sudden swelling in one leg only, or with chest pain or breathlessness, is a separate emergency and may mean a clot.
- Losing appetite or weight without trying. Feeling full quickly, nausea, unintentional weight loss. Not to be confused with the deliberate gradual weight loss recommended as treatment.
- Bruising easily or bleeding unusually. The liver makes clotting proteins. Frequent nosebleeds, bruises from nothing, cuts that keep bleeding.
- Persistent itching without a rash. Related to impaired bile flow. Common in some liver conditions, less typical of fatty liver specifically.
- Dark urine or pale, clay coloured stools. Suggests a problem with bilirubin or bile flow. Note that dehydration, food and medicines also change these colours.
- Confusion, drowsiness or personality change. Hepatic encephalopathy, where substances the liver would normally clear affect the brain. Includes forgetfulness, slurred speech and reversed sleep patterns.
Get emergency care for any of these
- Vomiting blood, or vomit that looks like coffee grounds
- Black tarry stools, or blood in the stool
- Sudden confusion, severe drowsiness, or loss of consciousness
- Severe abdominal pain, or rapidly increasing abdominal swelling
- Jaundice together with fever, vomiting or confusion
- Difficulty breathing, or inability to keep fluids down
Vomiting blood or passing black stools can indicate bleeding from varices, enlarged veins that develop in advanced cirrhosis. This is life threatening and is not something to manage at home or research further before acting.
What Actually Finds It: Ask for a FIB-4
Since symptoms fail and a single ALT fails, this is the practical part.
FIB-4 is a fibrosis score calculated from four things you probably already have on file: your age, AST, ALT and platelet count. No new test, no scan, no cost. It estimates how likely advanced scarring is, which is the thing that actually determines your outcome.
- Below 1.3 makes advanced fibrosis unlikely. Recheck periodically. Over 65, the lower cut off is generally taken as 2.0 instead.
- 1.3 to 2.67 is indeterminate and calls for a second test, usually elastography such as FibroScan, or an ELF blood test.
- Above 2.67 makes advanced fibrosis likely and warrants specialist referral. This group carries higher risk of liver related complications and mortality.
The American Diabetes Association consensus report recommends risk assessment, and reassessment every one to two years, for people with type 2 diabetes, prediabetes, or two or more metabolic risk factors such as raised BMI, large waist, high blood pressure or abnormal blood lipids. In type 2 diabetes specifically, fibrosis can be underestimated, so even a rise from below 1.0 into the 1.0 to 1.3 range may justify a closer look.
If you are in one of those groups, the useful sentence at your next appointment is simply: can we calculate my FIB-4 from my recent bloods? That is a far better use of the visit than describing vague tiredness.
Beyond that, NIDDK notes that ultrasound, CT or MRI can show liver fat, elastography estimates stiffness, and biopsy is reserved for cases where the diagnosis or severity remains unclear. Most people never need a biopsy.
If the result is not what you hoped
A diagnosis is not a verdict. Fat, and often inflammation, improve with sustained change. Losing 3 to 5 percent of body weight reduces liver fat and 7 to 10 percent may improve inflammation and fibrosis, provided it happens gradually, since rapid loss and malnutrition make liver disease worse.
Practically that means the diet pattern in our fatty liver diet guide, a starting structure like the 7 day fatty liver meal plan, cutting the items in foods to avoid if you have fatty liver, and the broader habits in lifestyle habits that support liver health.
Two cautions. Do not stop a prescribed medicine because you suspect it is affecting your liver, speak to the prescriber first. And do not start herbal liver cleanses or concentrated supplements, since several are recognised causes of liver injury and can interact with medicines.
Frequently Asked Questions
What are the first signs of fatty liver disease?
For most people there are none. MASLD affects roughly 38 percent of adults globally and is usually silent, found by accident on a blood test or scan done for another reason. When symptoms do appear, the two most commonly reported are persistent tiredness and a dull discomfort under the right ribs. Both are far too vague to diagnose anything on their own, which is why risk assessment matters more than symptom watching.
Can you have fatty liver with normal liver enzymes?
Yes, and this is the most important misunderstanding in the whole topic. In a study of 515 people with biopsy confirmed fatty liver disease, about 21 percent had completely normal liver enzymes, and the rate of advanced fibrosis was similar to those with abnormal enzymes. Another cohort found advanced fibrosis in 24 percent of people with normal ALT versus 17 percent with raised ALT. A normal liver panel does not rule out scarring.
What is a FIB-4 score and should I ask for one?
FIB-4 estimates the likelihood of advanced liver scarring using only your age, AST, ALT and platelet count, all of which are routine tests you may already have had. No scan and no extra cost. Below 1.3 makes advanced fibrosis unlikely, with 2.0 used as the lower cut off over age 65. Between 1.3 and 2.67 is indeterminate and needs a second test such as elastography. Above 2.67 makes advanced fibrosis likely and warrants specialist referral.
Who should be checked for fatty liver disease?
The American Diabetes Association consensus report recommends risk assessment for people with type 2 diabetes, prediabetes, or two or more metabolic risk factors such as raised BMI, large waist circumference, high blood pressure or abnormal blood lipids, with reassessment every one to two years. In type 2 diabetes fibrosis can be underestimated, so even a rise from below 1.0 into the 1.0 to 1.3 range may justify a closer look.
Can you feel a fatty liver?
Not usually. Fat accumulating in the liver produces no sensation. Some people notice a dull ache or heaviness under the right ribs if the liver enlarges enough to stretch its capsule, but that same discomfort commonly comes from the gallbladder, stomach, intestines or muscle. A clinician may detect an enlarged liver on examination, and imaging is needed to actually see the fat.
Does fatty liver cause jaundice?
Uncomplicated fatty liver does not. Yellowing of the skin or the whites of the eyes suggests advanced liver damage or a separate problem affecting the liver or bile ducts, and it needs prompt medical assessment. If jaundice appears alongside fever, vomiting, confusion or severe pain, treat that as an emergency rather than booking a routine appointment.
Is abdominal bloating a sign of fatty liver?
Ordinary bloating that comes and goes is usually gas, constipation, food intolerance or a digestive condition, not the liver. What matters is a steadily enlarging, tight abdomen caused by fluid, called ascites, which is a feature of advanced liver disease rather than early fatty liver. New or progressive abdominal swelling should be assessed promptly, particularly with fever, pain, breathlessness or confusion.
When should I go to the emergency room?
Go immediately for vomiting blood or coffee ground vomit, black tarry stools or blood in the stool, sudden confusion or severe drowsiness, loss of consciousness, severe abdominal pain, rapidly increasing abdominal swelling, jaundice with fever or vomiting, or difficulty breathing. Vomiting blood and black stools in particular can mean bleeding from varices, enlarged veins that form in advanced cirrhosis, which is life threatening.
Is fatty liver reversible?
Liver fat, and often inflammation, can improve substantially, especially when found before cirrhosis develops. Losing 3 to 5 percent of body weight reduces liver fat and 7 to 10 percent may improve inflammation and fibrosis. The important qualifier is that it must be gradual, because rapid weight loss and malnutrition make liver disease worse. Established cirrhosis is much harder to reverse, which is the argument for checking early.
Should I take a liver supplement while I wait for tests?
No. Herbal cleanses, detox teas and concentrated botanical extracts do not remove liver fat, and several are recognised causes of drug induced liver injury, with high dose green tea extract a documented example. They can also interact with prescribed medicines. Equally, do not stop a prescribed medicine because you suspect it is affecting your liver. Speak to the prescriber first.
Final Thoughts on the Signs of Fatty Liver Disease
The honest summary of the signs of fatty liver disease is that they are a poor detection system. Early disease is silent in most people, normal liver enzymes leave advanced scarring just as likely, and the symptoms everyone recognises belong to cirrhosis rather than to the stage where action helps most.
So use the list two ways. Treat tiredness and right sided discomfort as a reason to book an appointment, not as proof of anything. Treat jaundice, abdominal swelling, unusual bleeding, confusion or vomiting blood as reasons to be seen now.
Then do the thing symptoms cannot do for you. If you have type 2 diabetes, prediabetes or two metabolic risk factors, ask for a FIB-4 score from bloods you have likely already given. Finding this early is genuinely good news, because that is the stage where diet, activity and gradual weight loss still change the outcome.
Related reading: fatty liver diet: foods to eat and limit | best vegetables for liver health | fruits that support a healthy liver | coffee and liver health
Medical Disclaimer
This article is for general education and does not provide a diagnosis. Every symptom listed here has causes unrelated to the liver, and many liver conditions cause no symptoms at all, so nothing here should be used to rule a condition in or out. Seek personalised advice from a qualified healthcare professional, and obtain urgent care for jaundice, confusion, vomiting blood, black stools, severe abdominal pain or rapidly increasing abdominal swelling. See our medical disclaimer, editorial policy and fact checking policy.
Cross checked against NIDDK guidance on MASLD symptoms, diagnosis and treatment, the American Diabetes Association consensus report on MASLD screening in diabetes, published FIB-4 threshold data, and a study of 515 patients with biopsy confirmed fatty liver disease and normal aminotransferase levels. Last updated July 2026.
Edited by Dr. Obeydur Rahman, MBBS, MD in Medicine.
