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HBcAb Negative

I took 2 HBcAb tests in my STD panel this year that came back negative. Question... Does this mean I'm definitely NEGATIVE or do I need to take the HBsAg to confirm that result?
19 Responses
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I think Hbsag is more important lab test to take!
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Thank you Royal. Any insight as to why?
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Well that's the only way hepathlogist diagnose if you have the virus in your blood.
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Even if some one is diagnosed with HBV or CHB the final resolution to the clearance of the virus is by checking the Hsbag, we have some more experts here in this room they'll explain you how it'll really works.
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Sorry i mean Hbsag
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That was very helpful. I am 26, never had any real symptoms or abnormal blood work, my doctor told me my blood work in May showed a healthy liver. But I'm trying to get a handle on my overall sexual health/. When I went to my screening I was told my negative tests were for core antibodies. I mean obviously I'm happy with any negative test, but they do offer the surface level antigen test. Obviously this is all foreign to me.
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When was the first time you had a blood test? Probably if it is in b/n six months you probably had an acute infection and you cleared the virus with out any medication or theraphy. Good luck!
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Well to be clear, I never actually had any sort of confirmed Hep B diagnosis of any kind. I had a routine CBC done in May with my doctor, and all my results were normal. I did my first ever STD Panel in June which included a Negative HBcAb result. I did another STD Panel in August which included a second Negative HBcAb results. I had never tested for Hep B in the past before so I was wondering if my HBcAb meant I definitely did not have Hep B, or if I needed another kind of test to verify. I've had the same sexual partner for 3 years. I don't know her Hep B status, but we've been friends since we were 12, and are getting married soon. Guess I'm just thinking about my future...
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If I take the HBsAg test and that comes back negative, paired with my two negative HBcAb tests, can I be confident that I don't have an active Hep B infection?
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Bump...
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yes
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Hbcab igg alone is useless for hbv infection check, there are also rare chronicinfections without hbcab

Hbsag and hbsab are the only tests to do and hbcab igm to define if chonic or not in case hbsag positive (hbcab igm neg is chronic)
Avatar universal
That's very helpful information. Unfortunately, after reading my results more carefully it would appear the 2 negative HBcAb tests that I took were only the IgM tests. Those were at 8 and 14 weeks post exposure.

Today at 15 weeks post exposure I took the HBsAg test at LabCorp. I won't have the results for a day or two.

Would a NEGATIVE result on today's HBsAg still point to me not actively being infected with Hep B?
Avatar universal
Sorry for all the questions. There are just SO MANY Hep B tests like this is the most confusing STD to me. I feel lost.
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What I think you're saying...

If I test POSITIVE for HBsAg today, because my HBcAb IgM was NEGATIVE, that would indicate I have a chronic Hep B infection.

If I test NEGATIVE for HBsAg today, because my HBcAB IgM was NEGATIVE, that would indicate I am not actively infected with Hep B.

Is this correct?
Avatar universal
Lastly... (If I understand correctly)

If I test NEGATIVE for HBsAg today, though that would indicate I am not actively infected with Hep B, I would still need to do a HBsAb test to find out if I have immunity to Hep B.

NEGATIVE HBsAg paired with NEGATIVE HBsAb would indicate I need to get vaccinated.

NEGATIVE HBsAG paired with POSITIVE HBsAb would indicate I am immune to Hep B and can stop testing for it.

Is that correct?
Avatar universal
Just wanted to check in... My HBsAg came back NEGATIVE. Can anyone share insight with me?
Avatar universal
you dont have hbv infection
Avatar universal
Thanks stef2011!
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