Positive HCV Antibody Results: Key Questions Answered - Gastroenterology and Hepatology

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Hepatitis C testing issues?


Hello Doctor: I recently wanted to donate blood, and I was informed by the blood donation center that my hepatitis C antibody (Anti-HCV) test result from a year ago was positive.
The blood donation center then conducted a retest, and after a year, the Anti-HCV result remained positive.
This time, they also tested for Anti-HCV Western Blot, HCV RNA, and immunoassays, all of which returned negative results.
Additionally, my liver function tests from over a month ago were normal.
I have the following questions for you: 1.
What does this mean? 2.
Should I go to the hospital to check the viral load? 3.
Is there a risk of transmission? 4.
Can hepatitis C antibodies become negative over time? 5.
I have a hemangioma in my liver measuring 0.7-1 cm; is this directly related to hepatitis C? Thank you, Doctor!

Xiao Ting, 20~29 year old female. Ask Date: 2023/09/04

Dr. Chen Shidian reply Gastroenterology and Hepatology


Previously infected with hepatitis C, has naturally healed/cleared the hepatitis C virus, currently does not have hepatitis C, only has lifelong (weak) positive antibodies.

Reply Date: 2023/09/04

More Info


Understanding positive HCV antibody results can be quite complex, especially when considering the implications for health and potential transmission. Based on your situation, let’s break down your questions and provide clarity on each aspect.

1. What does a positive Anti-HCV result mean?
A positive Anti-HCV (HCV antibody) result indicates that you have been exposed to the hepatitis C virus at some point in your life. However, it does not necessarily mean that you currently have an active infection. The subsequent tests you underwent, including HCV RNA and Western Blot, which returned negative, suggest that there is no active viral replication in your body. This scenario is common; many individuals who test positive for HCV antibodies have cleared the virus spontaneously without treatment, which is estimated to occur in about 15-45% of cases.

2. Do you need to check for viral load?
Given that your HCV RNA test results are negative, there is no need for further viral load testing at this time. The absence of HCV RNA indicates that there is no active infection, and therefore, monitoring for viral load is unnecessary unless there are new symptoms or changes in your health status.

3. Is there a risk of transmission?
Since your HCV RNA is negative, you are not considered infectious. This means you cannot transmit the virus to others. However, it is essential to maintain regular health check-ups and monitor liver function, especially if you have a history of HCV exposure.

4. Can HCV antibodies become negative over time?
Yes, it is possible for HCV antibodies to become undetectable over time, especially if the initial infection was cleared. However, this is not common, and many individuals will retain detectable antibodies for life, even if they are no longer infected. The presence of antibodies serves as a marker of past infection.

5. Is there a connection between your liver hemangioma and HCV?
A liver hemangioma is a benign vascular tumor of the liver and is generally not related to hepatitis C infection. Hemangiomas are quite common and usually do not cause any symptoms or require treatment unless they are large or symptomatic. Your liver function tests being normal is a positive sign, indicating that your liver is functioning well despite the presence of the hemangioma.

In summary, your current health status appears stable, with no active hepatitis C infection. It is advisable to continue regular follow-ups with your healthcare provider to monitor your liver health and address any concerns you may have. If you have further questions or notice any changes in your health, do not hesitate to reach out to your healthcare provider for personalized advice and management.

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