These symptoms do not automatically mean someone has liver cancer.
They can occur with several other medical conditions, including hepatitis, gallbladder disease, cirrhosis, and other digestive disorders.
However, persistent or unexplained symptoms should be evaluated by a healthcare professional.
Why abdominal discomfort matters
The liver is located in the upper-right portion of the abdomen, beneath the rib cage.
A growing tumor may stretch the surrounding capsule or affect nearby structures.
This can produce discomfort or pain.
Some people describe a dull ache, pressure, or fullness.
Others experience little or no pain.
Pain alone is not a reliable way to diagnose liver cancer.
Medical assessment is necessary to determine the cause.
7. Seven Important Risk Factors for Liver Cancer
Food contamination is only one part of the broader liver cancer discussion.
Several established risk factors are much more common and should not be overlooked.
1. Chronic hepatitis B infection
Hepatitis B is a viral infection that affects the liver.
Some people recover from an acute infection, while others develop chronic hepatitis B.
Long-term infection can cause ongoing liver inflammation and increase the risk of liver cancer.
Importantly, hepatitis B can cause liver cancer even in some people who have not developed cirrhosis.
Vaccination is an effective way to prevent hepatitis B infection.
People who may have been exposed should discuss testing with a healthcare professional.
2. Chronic hepatitis C infection
Hepatitis C is another major cause of chronic liver disease.
It can lead to persistent inflammation, fibrosis, cirrhosis, and liver cancer.
Modern antiviral medications can cure most cases of hepatitis C.
However, people who already have advanced liver scarring may continue to need surveillance even after successful treatment.
3. Alcohol-related liver disease
Long-term excessive alcohol consumption can damage liver cells.
Repeated injury can cause inflammation and scar tissue formation.
Over time, some people develop cirrhosis.
Cirrhosis significantly increases the risk of hepatocellular carcinoma.
Reducing or avoiding alcohol is an important part of protecting liver health.
4. Metabolic dysfunction-associated steatotic liver disease
Fat accumulation in the liver is increasingly recognized as a major public health issue.
The condition is now commonly referred to as metabolic dysfunction-associated steatotic liver disease, or MASLD.
It is associated with factors such as obesity, insulin resistance, type 2 diabetes, and abnormal blood lipid levels.
Some individuals develop an inflammatory form of the disease that can progress to fibrosis and cirrhosis.
People with advanced liver disease may face an increased risk of liver cancer.
5. Aflatoxin exposure
As discussed earlier, aflatoxin B1 is a recognized human carcinogen.
Long-term dietary exposure is particularly concerning in regions where food contamination is difficult to control.
People with chronic hepatitis B infection may face an especially elevated risk when exposed to aflatoxins.
6. Cirrhosis
Cirrhosis is advanced scarring of the liver.
It can result from chronic viral hepatitis, alcohol-related liver disease, metabolic liver disease, and other conditions.
The damaged liver tissue gradually replaces healthy tissue, affecting normal liver function.
Most people who develop hepatocellular carcinoma have underlying chronic liver disease or cirrhosis, although there are exceptions.
7. Smoking
Smoking is associated with several cancers and can contribute to an increased risk of liver cancer.
Tobacco smoke contains numerous harmful chemicals that affect the body.
Avoiding tobacco is an important component of cancer prevention.
8. How Doctors Diagnose Liver Cancer
A diagnosis of liver cancer cannot be made by looking at someone's appearance or examining a food item in their refrigerator.
Doctors use a combination of medical history, physical examination, blood tests, and imaging studies.
The diagnostic approach depends on the patient's risk factors and the characteristics of any suspected liver lesion.
Ultrasound examination
An abdominal ultrasound uses sound waves to create images of the liver.
It can identify suspicious masses, changes in liver structure, and other abnormalities.
Ultrasound is commonly used for surveillance in people at high risk of liver cancer.
CT scans
A contrast-enhanced computed tomography scan provides detailed images of the liver.
It helps doctors evaluate the size, location, and characteristics of suspicious lesions.
It can also help determine whether a tumor may have spread to nearby structures.
MRI scans
Magnetic resonance imaging provides detailed information about liver tissue.
It is particularly useful when doctors need to characterize a suspicious lesion more precisely.
Blood tests
Doctors may evaluate liver function using blood tests.
These may include measurements of bilirubin, albumin, liver enzymes, and other markers.
Alpha-fetoprotein, commonly called AFP, may also be measured.
AFP can be elevated in some people with liver cancer.
However, it is not sufficiently accurate to diagnose or exclude liver cancer on its own.
Liver biopsy
In some cases, a biopsy is necessary.
This involves obtaining a small tissue sample for laboratory examination.
However, biopsy is not required for every suspected liver cancer.
In certain high-risk patients, characteristic findings on specialized imaging may be sufficient for diagnosis.
The decision depends on the clinical situation.
9. Why Early Detection Can Make a Significant Difference
The stage at which liver cancer is diagnosed has a major influence on treatment options.
When a tumor is detected at an early stage, some patients may be eligible for potentially curative treatments.
These can include surgical removal of the tumor, liver transplantation, or local treatments designed to destroy cancer cells.
The best option depends on tumor characteristics, liver function, and the patient's overall health.
For people with advanced disease, treatment may focus on controlling tumor growth, prolonging survival, and maintaining quality of life.
Modern treatments include targeted therapies, immunotherapy combinations, and other specialized approaches.
However, not every treatment is appropriate for every patient.
This is why regular surveillance is important for people at high risk.
For many patients with cirrhosis or certain other high-risk conditions, doctors recommend liver ultrasound approximately every six months, sometimes combined with AFP testing.
The exact surveillance plan should be determined by a specialist.
10. Eight Practical Ways to Protect Your Liver Through Everyday Habits
There is no single food or supplement that can guarantee protection against liver cancer.
However, evidence-based lifestyle habits can help reduce several important risk factors.
1. Choose a balanced diet
A healthy eating pattern should include vegetables, fruits, whole grains, legumes, and appropriate sources of protein.
Limit heavily processed foods and excessive added sugars.
A balanced diet can help support a healthy body weight and reduce metabolic risk factors.
2. Store food correctly
Purchase food from reliable sources.
Keep dry products away from moisture.
Refrigerate perishable ingredients promptly.
Use clean, sealed containers and discard food that shows signs of spoilage.
3. Avoid visibly moldy foods
Never intentionally consume moldy peanuts, grains, nuts, or other questionable products.