Liver Cancer: Causes, Symptoms, Diagnosis, Stages, Treatment & Survival

Liver cancer is not a condition that develops overnight. For many people, it begins after years of ongoing liver damage caused by hepatitis, fatty liver disease, excessive alcohol use, or cirrhosis. What makes it especially concerning is that it often does not cause noticeable symptoms until it has progressed.

Being aware of the early warning signs and understanding your personal risk factors can make all the difference. Early detection gives doctors more treatment options and offers patients a better chance of successful recovery.

What Is Liver Cancer?

Liver cancer develops when cells in the liver grow abnormally and multiply without control, eventually forming a tumour. It can affect the liver in different ways, depending on where the cancer begins.

There are two main types of liver cancer:

Primary Liver Cancer:

Primary liver cancer starts in the liver itself. The most common form is Hepatocellular Carcinoma (HCC), which develops from the liver’s main cells, known as hepatocytes. It accounts for nearly 75 to 85 percent of all primary liver cancer cases  (src: World Health Organization).

Other, less common types include:

• Intrahepatic cholangiocarcinoma – A cancer that begins in the small bile ducts within the liver.

• Angiosarcoma – A rare cancer that develops in the blood vessels of the liver and tends to grow rapidly.

Secondary (Metastatic) Liver Cancer:

Secondary liver cancer does not begin in the liver. Instead, it starts in another part of the body, such as the colon, breast, lung, or pancreas, and later spreads to the liver through the bloodstream or lymphatic system.

Although both conditions affect the liver, they are treated differently because the treatment depends on where the cancer first developed. Identifying whether the cancer is primary or secondary helps specialists choose the most effective treatment plan and predict how the disease may progress.

What Are the Primary Causes and Risk Factors of Liver Cancer?

Liver cancer usually does not develop overnight. In many cases, it is the result of long standing liver damage. Knowing the conditions and lifestyle factors that increase the risk allows people to take action before cancer develops.The most common causes include:

Chronic Hepatitis B and Hepatitis C:

Long term infection with hepatitis B or hepatitis C causes ongoing inflammation that can damage liver cells over many years. People living with chronic hepatitis should undergo regular liver screening.

Liver Cirrhosis:

Liver Cirrhosis (permanent liver scarring) significantly increases the risk of developing liver cancer.

Common causes of cirrhosis include:

• Chronic alcohol use
• Viral hepatitis
• Fatty liver disease

Non Alcoholic Fatty Liver Disease (NAFLD):

NAFLD occurs when excess fat builds up in the liver without alcohol being the cause. When inflammation develops, it becomes NonAlcoholic Steatohepatitis (NASH), which can eventually lead to cirrhosis and liver cancer.

Excessive Alcohol Consumption:

Heavy alcohol intake over many years damages liver tissue and increases cancer risk.

Exposure to Aflatoxins:

Aflatoxins are harmful toxins produced by certain molds found in poorly stored grains and nuts. Long term exposure raises the risk of liver cancer, especially in people with hepatitis B.

Other Risk Factors

• Diabetes
• Obesity
• Smoking
• Family history of liver cancer
• Certain inherited liver diseases
• Exposure to industrial chemicals

What Are the Early and Advanced Symptoms of Liver Cancer?

Recognizing the liver cancer causes and symptoms early offers the best opportunity for successful treatment.

Early Signs of Liver Cancer:

Early symptoms are often subtle and easy to overlook.

These may include:

• Persistent fatigue
• Mild discomfort in the upper right abdomen
• Reduced appetite
• Feeling full after eating small amounts
• Unexplained weight loss
• Nausea

Advanced Symptoms:

As the disease progresses, symptoms become more noticeable.

These include:

• Jaundice (yellowing of the skin and eyes)
• Swollen abdomen due to fluid buildup (ascites)
• Severe abdominal pain
• Darkcolored urine
• Pale stools
• Persistent itching
• Enlarged liver
• Fever without infection

Anyone experiencing these symptoms should consult a liver specialist promptly.

How Is Liver Cancer Diagnosed?

Doctors combine medical history, physical examination, blood tests, and imaging studies to confirm liver cancer.

AlphaFetoprotein (AFP)

AFP is a protein that may become elevated in people with hepatocellular carcinoma. Although useful, AFP alone cannot diagnose liver cancer.

Imaging Tests

Doctors commonly recommend:

• Ultrasound
• CT Scan (Computed Tomography)
• MRI (Magnetic Resonance Imaging)

These scans help determine:

• Tumor size
• Number of tumors
• Blood vessel involvement
• Cancer spread

Liver Biopsy

A liver biopsy involves removing a small tissue sample using a needle for laboratory examination. A biopsy is usually performed when imaging results are uncertain. (src: National Cancer Institute)

What Are the Stages of Liver Cancer?

Stage	Tumor Characteristics	Lymph Nodes	Metastasis
Stage I	Single small tumor confined to liver	No	No
Stage II	Single tumor invading blood vessels or several small tumors	No	No
Stage III	Multiple large tumors or spread into major blood vessels or nearby organs	Usually No	No
Stage IV	Cancer has spread beyond the liver	May be involved	Yes

Earlier stages usually offer more treatment options and better outcomes.

What Are the Treatment Options for Liver Cancer?

Every treatment plan is personalised. Specialists consider the stage of the cancer, how well the liver is functioning, the size and location of the tumour, and the patient’s overall health before recommending the most appropriate approach.

Surgery (Hepatectomy)

A hepatectomy removes the portion of the liver containing the tumor. Healthy liver tissue can regenerate after surgery.

Liver Transplant

A liver transplant removes the diseased liver and replaces it with a healthy donor liver. It is often recommended for carefully selected patients with early stage liver cancer and severe cirrhosis.

Ablation Therapy

Ablation destroys cancer cells using:

• Heat (radio frequency ablation)
• Microwave energy
• Extreme cold

This option is suitable for small tumors.

Embolization

Doctors block the blood supply feeding the tumor.

Types include:

• Transarterial Chemoembolization (TACE)
• Radioembolization (Y90)

Targeted Therapy

These medicines specifically attack cancer cells while limiting damage to healthy tissue.

Immunotherapy

Immunotherapy helps the body’s immune system recognize and destroy cancer cells. It has become an important treatment option for advanced liver cancer.

Radiation Therapy

Advanced radiation techniques can precisely target tumors while protecting surrounding healthy liver tissue. (src: Mayo Clinic)

What Is the Survival Rate and Outlook for Patients?

Survival depends greatly on when liver cancer is diagnosed. Patients diagnosed at an early stage often have significantly better outcomes because surgery or liver transplantation may completely remove the cancer.

Modern advances in targeted therapy, immunotherapy, transplantation, and early screening continue to improve survival and quality of life.

This is why awareness of liver cancer causes and symptoms remains so important.

Empowering Lives Through Early Detection and Care

Liver cancer does not always present clear warning signs, but awareness can save lives. Learning the liver cancer causes and symptoms, identifying risk factors early, and attending regular health screenings can lead to earlier diagnosis and more effective treatment.

At the Chennai Liver Foundation (CLF), our mission is to improve liver health through community education, preventive screening programs, patient support, and access to expert care. By promoting awareness and encouraging timely medical evaluation, we aim to reduce the burden of liver disease and help individuals live healthier lives.

Frequently Asked Questions

Medically Reviewed by: Dr. S. Vivekanandan, HPB & Liver Transplant Surgeon, CLF