Hepatitis C: Causes, Symptoms, Testing, Treatment, and Prevention

Hepatitis C is a liver infection caused by the hepatitis C virus, also called HCV. It spreads mainly when blood containing the virus enters another person’s bloodstream.

Many people with hepatitis C have no symptoms. Without testing, the infection can remain undiagnosed for years while liver inflammation and scarring develop.

The outlook has changed dramatically. Modern direct-acting antiviral medicines can cure more than 95% of hepatitis C infections, often with 8 to 12 weeks of oral treatment.

However, treatment does not create immunity. A person who has been cured can become infected again after another exposure.

This guide explains hepatitis C causes, transmission, symptoms, testing, treatment, pregnancy considerations, prevention, care after treatment, and warning signs that require medical attention.

What Is Hepatitis C?

Hepatitis means inflammation of the liver. Hepatitis C is liver inflammation caused by HCV.

The infection may be:

• Acute: A recent infection during the first several months after exposure
• Chronic: An infection that remains in the body over time

Some people clear an acute infection naturally. However, many untreated infections become chronic.

Chronic hepatitis C may gradually cause:

• Persistent liver inflammation
• Liver fibrosis, or scarring
• Cirrhosis
• Liver failure
• Hepatocellular carcinoma, the most common primary liver cancer

Modern antiviral treatment can eliminate the virus from the blood and prevent many of these complications.

Current Global Impact of Hepatitis C

Hepatitis C remains a major global public-health problem despite the availability of curative treatment.

According to the World Health Organization’s June 2026 update:

• Approximately 47 million people were living with chronic hepatitis C
• About 900,000 new infections occurred annually
• Approximately 239,000 people died from hepatitis C-related cirrhosis and liver cancer in 2024

Many people remain undiagnosed because hepatitis C often causes no symptoms until significant liver damage has developed.

Testing and connection to treatment are therefore essential parts of hepatitis C prevention and elimination.

How Does Hepatitis C Spread?

HCV is a bloodborne virus. Transmission occurs when infected blood enters another person’s bloodstream.

Sharing Injecting Equipment

Sharing needles, syringes, cookers, filters, water containers, or other injecting equipment is an important transmission route.

Blood may remain on equipment even when it is too small to see. Using a new sterile needle and syringe is important, but all preparation equipment should also be sterile and not shared.

Unsafe Healthcare Procedures

HCV can spread when healthcare equipment is reused or inadequately sterilized.

Examples may include:

• Reused needles or syringes
• Inadequately sterilized surgical equipment
• Unsafe injections
• Poor infection-control practices
• Improperly handled multidose medicine containers

Reliable infection-control practices make transmission through modern regulated healthcare uncommon in many countries.

Blood Transfusions and Organ Transplants

Before routine screening was introduced, hepatitis C could spread through blood transfusions, blood products, and organ transplantation.

In the United States, people who received blood transfusions or organ transplants before July 1992 may have a higher historical exposure risk.

Risk remains higher in countries or settings where blood screening and infection-control systems are limited.

Tattooing and Piercing

HCV may spread when tattoo or piercing equipment is reused, contaminated, or inadequately sterilized.

Choose a regulated provider that uses:

• New single-use needles
• Fresh ink containers
• Proper sterilization
• Gloves and infection-control procedures

Childbirth

A pregnant person with current HCV infection can pass the virus to the baby during pregnancy or childbirth.

The risk is not present simply because an HCV antibody test is positive. Current infection is determined by detectable HCV RNA.

Sexual Contact

Sexual transmission is less common than direct blood exposure, but it can occur.

Risk may be higher when sexual activity involves blood exposure, including:

• Traumatic sex
• Sex during menstruation
• Rectal bleeding
• Genital sores
• Sexually transmitted infections
• Multiple sexual partners
• HIV coinfection

Sharing Personal Items

HCV may spread through personal items that contain infected blood, even when the blood is not visible.

Do not share:

• Razors
• Toothbrushes
• Nail clippers
• Glucose-testing equipment
• Items used for injecting or inhaling drugs

Occupational Blood Exposure

Healthcare, emergency-response, laboratory, and public-safety personnel may be exposed through needlestick, sharps, or blood contact with mucous membranes or non-intact skin.

Prompt reporting and follow-up testing are important because there is no vaccine or preventive immunoglobulin treatment for HCV exposure.

How Hepatitis C Does Not Spread

Hepatitis C is not spread through ordinary social or household contact.

It is not transmitted by:

• Food or drinking water
• Hugging
• Holding hands
• Coughing or sneezing
• Sharing meals
• Sharing plates, cups, or eating utensils
• Using the same toilet
• Sitting beside someone
• Casual kissing
• Breastfeeding under ordinary circumstances

People with hepatitis C should not be excluded from school, work, family meals, childcare, or normal social activities.

Acute versus chronic hepatitis C

Acute Hepatitis C

Acute hepatitis C occurs during the first months after infection. Most people do not notice symptoms.

Current AASLD-IDSA guidance recommends starting treatment after acute HCV infection with confirmed viremia rather than waiting to see whether spontaneous clearance occurs.

This approach can:

• Reduce loss to follow-up
• Prevent progression to chronic infection
• Reduce further transmission
• Use the same effective direct-acting antivirals used for chronic infection

Chronic Hepatitis C

Chronic hepatitis C can remain silent for decades. The virus may continue causing inflammation even when a person feels well and liver enzymes are not dramatically elevated.

Treatment is recommended for almost everyone with acute or chronic HCV infection, except in uncommon situations where a person has a very limited life expectancy that cannot be improved by hepatitis C treatment, liver transplantation, or other appropriate care.

Hepatitis C Symptoms

Many people with hepatitis C have no symptoms. Symptoms cannot confirm or exclude an infection.

Possible Early Symptoms

• Fatigue
• Reduced appetite
• Nausea
• Vomiting
• Low-grade fever
• Joint pain
• Muscle aches
• Upper-right abdominal discomfort
• Dark urine
• Pale stools
• Yellow skin or eyes

Possible Signs of advanced liver disease

• Easy bruising or bleeding
• Itchy skin
• Swelling in the legs
• Fluid buildup in the abdomen
• Loss of muscle
• Unexplained weight loss
• Visible blood vessels on the skin
• Confusion or unusual sleepiness
• Vomiting blood
• Black, tar-like stools

Upper-right abdominal pain is not specific to hepatitis C. The gallbladder, stomach, intestines, ribs, muscles, lungs, and other structures can also cause discomfort in that area.

Read how gallbladder pain may differ from liver-area pain, while remembering that online symptom comparisons cannot provide a diagnosis.

Who Should Get Tested for Hepatitis C?

Testing recommendations vary by country. In the United States, CDC recommends:

• At least one hepatitis C screening test for all adults aged 18 or older
• Testing during every pregnancy
• Periodic testing for people with ongoing exposure risks
• Testing after a possible blood exposure
• Testing anyone who requests it, even if they do not disclose a risk factor

People With Important Exposure Risks

Testing is especially important for people who:

• Currently inject drugs or injected drugs in the past
• Shared needles, syringes, or preparation equipment
• Received blood transfusions or organ transplants before July 1992 in the United States
• Received clotting-factor concentrates made before older screening methods were introduced
• Received healthcare in a setting with inadequate infection control
• Have been on long-term hemodialysis
• Have HIV
• Have unexplained abnormal liver tests
• Were born to a person with HCV infection
• Experienced an occupational blood exposure
• Received an unregulated tattoo or piercing
• Were incarcerated or lived in another setting with increased exposure risk

Testing After a Recent Exposure

Antibodies may not become detectable immediately after infection. If exposure was recent, a clinician may order an HCV RNA test even when the antibody result is negative.

Do not wait for symptoms. Most newly infected people do not develop obvious symptoms.

How Is Hepatitis C Diagnosed?

Diagnosis usually involves two steps.

Step 1: HCV Antibody Test

The antibody test shows whether the immune system has ever responded to HCV.

A reactive antibody result alone does not prove that active hepatitis C is present.

Step 2: HCV RNA Test

An HCV RNA nucleic acid test looks for the virus in the blood.

• Detectable HCV RNA: Current hepatitis C infection is present
• Undetectable HCV RNA: No current infection was detected at that time

An undetectable RNA result after a reactive antibody test may mean that the person cleared the infection naturally or was cured by previous treatment.

Reflex Testing

The laboratory should automatically perform HCV RNA testing on the same sample after a reactive antibody result. This is called reflex testing.

Reflex testing reduces delays and avoids requiring the patient to return for a second blood draw.

Will the Antibody Test Stay Positive After Cure?

Usually, yes. HCV antibodies commonly remain detectable after spontaneous clearance or successful treatment.

Someone who has previously had hepatitis C should be tested with HCV RNA, not another antibody test, when reinfection is suspected.

Visit the Medical Tests and Screenings Hub for general guidance on preparing questions about blood tests and health screening.

How is liver health assessed?

After current HCV infection is confirmed, clinicians assess liver health and prepare for safe treatment.

Common Blood Tests

• ALT and AST
• Bilirubin
• Albumin
• Platelet count
• Complete blood count
• INR or another clotting test when appropriate
• Kidney-function tests
• HCV RNA level

Fibrosis and Cirrhosis Assessment

Noninvasive tools are used for most people. These may include:

• FIB-4
• APRI
• Transient elastography
• Liver ultrasound
• Other liver-stiffness imaging
• Clinical signs and laboratory results

Is a liver biopsy required?

No. A liver biopsy is not routinely required before modern hepatitis C treatment.

It may be considered in selected complex situations when noninvasive tests do not provide enough information or another liver disease is suspected.

Additional Testing

Before treatment, clinicians commonly review:

• Hepatitis B status
• HIV status
• Pregnancy status when relevant
• Current prescription medicines
• Over-the-counter medicines
• Herbs and supplements
• Previous hepatitis C treatment
• Signs of compensated or decompensated cirrhosis

Modern Hepatitis C Treatment

Modern treatment uses oral medicines called direct-acting antivirals, or DAAs.

DAAs target proteins that HCV needs to reproduce. Most current regimens:

• Are taken as tablets
• Last approximately 8 to 12 weeks for many patients
• Work across several or all major HCV genotypes
• Have much higher cure rates than older interferon treatment
• Are generally easier to tolerate than interferon-based therapy

Common Pangenotypic Treatment Options

Common regimens for appropriately selected treatment-naive adults include:

• Glecaprevir with pibrentasvir
• Sofosbuvir with velpatasvir

The correct treatment depends on:

• Whether cirrhosis is present
• Whether cirrhosis is compensated or decompensated
• Previous hepatitis C treatment
• Kidney function
• Pregnancy
• HIV or hepatitis B coinfection
• Medicine interactions
• HCV genotype in selected circumstances
• Local availability and treatment guidelines

This article does not provide doses or recommend one medicine over another.

Is Interferon still used?

Interferon-based treatment is no longer the standard treatment for most people with hepatitis C.

Older regimens often involved injections, ribavirin, longer treatment, lower cure rates, and more side effects. Modern DAA treatment has replaced interferon in most routine care.

Should acute hepatitis C be treated?

Current U.S. guidance recommends treating confirmed acute HCV infection without waiting for possible spontaneous clearance.

The same modern DAA approaches used for chronic infection are used for acute infection under professional guidance.

Can People Who Use Drugs Receive Treatment?

Yes. Current or recent drug use is not, by itself, a reason to withhold hepatitis C treatment.

People who use drugs can achieve high cure rates when they receive appropriate care. Combining treatment with harm-reduction services, substance-use treatment when desired, and access to sterile equipment can help prevent reinfection and transmission.

Checks Before Starting Treatment

Before prescribing DAAs, the healthcare team may review:

• Current HCV RNA
• Fibrosis or cirrhosis status
• Kidney and liver function
• Complete blood count
• Pregnancy status
• Hepatitis B test results
• HIV test results
• Previous treatment history
• Every prescription and nonprescription medicine
• Vitamins, herbs, teas, and supplements

Medicine Interactions

DAAs can interact with medicines used for:

• Acid reflux
• High cholesterol
• Seizures
• Heart rhythm conditions
• HIV
• Transplant care
• Tuberculosis
• Blood clotting

Some herbal products, including St. John’s wort, may also cause important interactions.

Do not stop another essential medicine yourself. A clinician or pharmacist may adjust timing, dose, or treatment selection safely.

Hepatitis B Reactivation

DAA treatment can rarely trigger hepatitis B reactivation in someone with current or previous HBV infection.

This is why hepatitis B testing is an important part of the pretreatment assessment.

For more information about HBV care, read Hepatitis B Treatment: Medicines, Monitoring, and Long-Term Care.

How is hepatitis C cure confirmed?

Hepatitis C is considered cured when HCV RNA remains undetectable at least 12 weeks after treatment ends.

This is called a sustained virologic response, or SVR12.

Why a Test During Treatment Is Not Enough?

HCV RNA may become undetectable while tablets are still being taken. That is encouraging, but it does not replace the post-treatment cure test.

The recommended confirmation is HCV RNA testing at least 12 weeks after the final treatment dose.

Can the virus return After Cure?

Two situations are possible:

• Relapse: The original infection returns after treatment. This is uncommon with modern therapy.
• Reinfection: A person is exposed to HCV again and develops a new infection.

Successful treatment does not create immunity. Prevention remains important after cure.

What happens after successful treatment?

Follow-up after cure depends mainly on whether cirrhosis is present and whether ongoing exposure risk remains.

People Without Cirrhosis

People who achieve SVR and do not have cirrhosis generally do not need continuing hepatitis C-specific liver follow-up unless they:

• Have ongoing risk of reinfection
• Have persistently abnormal liver tests
• Have another liver condition
• Drink enough alcohol to cause liver injury
• Have metabolic fatty liver disease

People with ongoing exposure risk

Periodic HCV RNA testing may be recommended for people with ongoing risk. Antibody testing is not useful for reinfection because antibodies usually remain positive.

People With Cirrhosis

Cure substantially reduces the risk of liver failure and liver cancer, but it does not remove all risk after cirrhosis has developed.

People with cirrhosis generally continue:

• Liver-cancer surveillance
• Specialist liver follow-up
• Monitoring for complications of portal hypertension
• Individualized nutrition and medicine review

Hepatitis C, Cirrhosis, and liver cancer

Long-term untreated HCV can cause progressive fibrosis and cirrhosis.

Cirrhosis may lead to:

• Portal hypertension
• Fluid in the abdomen
• Swollen legs
• Bleeding from enlarged veins in the digestive tract
• Confusion caused by hepatic encephalopathy
• Liver failure
• Liver cancer

Liver-Cancer Surveillance

People with cirrhosis continue liver-cancer surveillance after hepatitis C is cured.

Surveillance is commonly performed approximately every six months with liver ultrasound, sometimes together with an alpha-fetoprotein blood test.

The treating liver specialist should set the exact schedule.

Primary versus secondary liver cancer

Hepatitis C is associated primarily with hepatocellular carcinoma, which begins in the liver.

Secondary liver cancer begins in another organ and spreads to the liver. Learn more in the NextFitLife guide to secondary liver cancer.

Hepatitis C During Pregnancy

CDC recommends hepatitis C screening during every pregnancy.

Can HCV Pass to the Baby?

Yes. A pregnant person with detectable HCV RNA can pass the infection to the infant during pregnancy or childbirth.

Risk is higher when HIV is not well controlled. No delivery method has been shown to eliminate transmission risk in every case.

Is antiviral treatment used during pregnancy?

Routine DAA treatment during pregnancy remains a specialist decision because large-scale safety data are still limited.

Treatment before pregnancy may prevent future perinatal transmission. People diagnosed during pregnancy should receive coordinated obstetric and hepatitis care and be connected to treatment after delivery when appropriate.

Testing Infants Exposed During Pregnancy

CDC recommends HCV RNA nucleic acid testing for all perinatally exposed infants between 2 and 6 months of age.

Children who were not tested during that period need age-appropriate follow-up testing:

• HCV RNA testing for untested children aged 7 to 17 months
• HCV antibody testing with reflex RNA testing for untested children aged 18 months or older

Breastfeeding

Breastfeeding is considered safe with hepatitis C. Seek professional advice if nipples are cracked or bleeding.

Hepatitis C With Hepatitis B or HIV

Hepatitis B Coinfection

A person can have hepatitis B and hepatitis C together. HBV may reactivate during or after DAA treatment, so pretreatment hepatitis B testing and an appropriate monitoring or treatment plan are important.

HIV Coinfection

Modern DAAs can cure hepatitis C in people living with HIV at rates similar to those in people without HIV.

Treatment must account for interactions between DAAs and antiretroviral medicines. HIV medicine should not be stopped to make room for hepatitis C treatment.

Hepatitis A and B Vaccination

There is no hepatitis C vaccine.

People with hepatitis C should ask whether hepatitis A and hepatitis B vaccination is recommended. These vaccines do not prevent HCV, but they may protect the liver from additional viral infections.

How to Prevent Hepatitis C

Because there is no vaccine, prevention focuses on avoiding contact with infected blood and expanding testing and treatment.

Use Sterile Injecting Equipment

• Use a new sterile needle and syringe every time
• Do not share cookers, filters, water, swabs, or other preparation equipment
• Use syringe-services and harm-reduction programs where available
• Consider medication, treatment, and other support for substance-use disorder when desired

Choose Safe Tattoo and Piercing Services

• Use a regulated provider
• Confirm that needles are new and single-use
• Confirm that ink is placed in a new disposable container
• Avoid informal procedures with reused equipment

Do Not Share Blood-Contaminated Personal Items

• Razors
• Toothbrushes
• Nail clippers
• Glucose meters or lancets
• Injecting or inhaling equipment

Use standard infection-control practices

Healthcare and personal-service providers should follow proper hand hygiene, sharps disposal, sterilization, and single-use equipment rules.

Reduce Sexual Blood Exposure

Barrier protection may be especially appropriate when:

• A partner’s HCV status is unknown
• There are multiple partners
• HIV or another sexually transmitted infection is present
• Sex may cause bleeding
• Men have sex with men, and additional risk factors are present

Test and Treat

Curing HCV removes the virus from the blood and prevents that treated infection from being passed to another person.

Testing, rapid connection to treatment, and reinfection prevention are therefore central public-health strategies.

What Should You Do After Possible Exposure?

There is no hepatitis C vaccine, immune globulin, or recommended antiviral post-exposure prophylaxis.

After a Needlestick or blood exposure

• Wash the area with soap and water
• Flush exposed eyes or mucous membranes with water
• Report the exposure immediately
• Do not squeeze or aggressively scrub the wound
• Obtain baseline and follow-up testing according to occupational-health guidance

After sharing injecting equipment or another blood exposure

Contact a healthcare service promptly for testing advice. An HCV RNA test may detect infection before the antibody test becomes reactive.

Testing may also include HIV and hepatitis B based on the exposure.

Daily Case White Living With Hepatitis C

Daily habits cannot eliminate HCV. Antiviral treatment is required to cure an active infection.

However, these habits may reduce additional liver stress and support general health.

Follow Professional Alcohol Advice

Alcohol can accelerate liver damage. People with chronic hepatitis C, fibrosis, or cirrhosis may be advised to avoid alcohol completely.

A person who drinks heavily or may be physically dependent should seek medical advice before stopping suddenly because withdrawal can be dangerous.

Eat Balanced Meals

A general balanced pattern may include:

• Vegetables
• Whole fruit
• Beans and lentils
• Whole grains when suitable
• Fish
• Eggs, poultry, tofu, or other suitable proteins
• Nuts and seeds in appropriate portions
• Unsaturated fats such as olive oil

No food or drink cleans HCV from the liver.

For general food ideas, read Foods Good for Liver: Food and Meal Ideas and visit the Kidney and Liver Health Foods Hub.

Avoid unverified liver-cleanse products

Detox teas, juice cleanses, and herbal supplements do not cure hepatitis C. Some products can cause liver injury or interact with antiviral treatment.

Read Liver Detox: 10 Safer Ways to Support Liver Health for a cautious explanation of cleanse claims.

Take Treatment Exactly as Directed

• Use a daily reminder
• Refill medicine before it runs out
• Ask how to handle a missed dose
• Report side effects early
• Do not stop when you begin feeling better
• Complete the post-treatment HCV RNA test

Manage Other Liver Risks

Diabetes, metabolic fatty liver disease, obesity, alcohol, and certain medicines may contribute to liver injury even after HCV is cured.

Continue appropriate medical care for these conditions.

When Should You Seek Medical Care?

Arrange a medical appointment for:

• Exposure to infected blood
• A reactive HCV antibody result
• Detectable HCV RNA
• Persistent fatigue
• Dark urine or pale stools
• Unexplained abnormal liver tests
• Upper-right abdominal discomfort
• New medicine side effects
• Pregnancy with current or previous HCV infection

Seek urgent medical help for:

• Vomiting blood
• Black, tar-like stools
• Severe confusion
• Fainting
• Rapidly increasing abdominal swelling
• Severe abdominal pain
• Difficulty breathing
• Severe weakness
• Jaundice with rapidly worsening illness

Questions to Ask Your Healthcare Professional

• Was my HCV RNA test positive?
• Do I have acute or chronic hepatitis C?
• Do I have liver fibrosis or cirrhosis?
• Which direct-acting antiviral regimen is appropriate for me?
• How long will treatment last?
• How should I take the medicine?
• Which medicines or supplements could interact with treatment?
• Do I need hepatitis B or HIV testing?
• Should I receive hepatitis A or B vaccination?
• When will my cure test be performed?
• Will I need liver-cancer surveillance after treatment?
• How can I reduce my risk of reinfection?
• Should my partner or family members be tested?
• What should I do if I miss a dose?
• Which symptoms require urgent care?

Key Takeaway

Hepatitis C is caused by HCV and spreads mainly through exposure to infected blood.

It does not spread through food, water, hugging, coughing, sharing meals, or ordinary household contact.

Many people have no symptoms. Testing begins with an HCV antibody test, followed by an HCV RNA test when the antibody result is reactive.

Modern direct-acting antiviral tablets cure more than 95% of infections, often after 8 to 12 weeks. Cure must be confirmed with an HCV RNA test at least 12 weeks after treatment ends.

There is no hepatitis C vaccine, and successful treatment does not provide immunity. Sterile equipment, safer blood practices, testing, treatment, and reinfection prevention remain essential.

Recommended next step: If you have ever had a possible blood exposure or have never been screened as an adult, ask a qualified healthcare professional whether you should have an HCV antibody test with reflex RNA testing.

References and Sources

1. 
   World Health Organization: Hepatitis C Fact Sheet
   
2. 
   World Health Organization: Consolidated Guidance on Hepatitis B and C Prevention, Testing, Treatment, Service Delivery and Monitoring
   
3. 
   World Health Organization: Global Hepatitis Report 2026
   
4. 
   Centers for Disease Control and Prevention: Hepatitis C Basics
   
5. 
   Centers for Disease Control and Prevention: Clinical Overview of Hepatitis C
   
6. 
   Centers for Disease Control and Prevention: Clinical Screening and Diagnosis for Hepatitis C
   
7. 
   Centers for Disease Control and Prevention: Hepatitis C Prevention and Control
   
8. 
   Centers for Disease Control and Prevention: Treatment of Hepatitis C
   
9. 
   Centers for Disease Control and Prevention: Testing Recommendations for Infants and Children With Perinatal HCV Exposure
   
10. 
    AASLD-IDSA HCV Guidance: Management of Acute HCV Infection
    
11. 
    AASLD-IDSA HCV Guidance: Simplified Treatment for Treatment-Naive Adults Without Cirrhosis
    
12. 
    AASLD-IDSA HCV Guidance: Monitoring Before, During and After Treatment
    
13. 
    AASLD-IDSA HCV Guidance: HCV in Pregnancy
    

Related NextFitLife Guides and Topic Hubs

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• Hepatitis B Treatment: Medicines, Monitoring, and Long-Term Care
• Liver Detox: 10 Safer Ways to Support Liver Health
• Foods Good for Liver: Food and Meal Ideas
• Kidney and Liver Health Foods Hub
• How to Differentiate Gallbladder and Liver Pain
• Secondary Liver Cancer: Symptoms, Diagnosis, and Care

NextFitLife Topic Hubs

• Infections and Immune Health Hub
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• Foods and Nutrition Hub
• Health Hub

Adel Galal

Health & wellness writer with 30+ years of experience in nutrition, fitness, and healthy aging. Founder of NextFitLife.com — evidence-based health guidance.