Doc,
Is there a possibility that a Hepatitis B vaccine may cause hairloss? I am due this jab very soon (actually it will be 3 shots over 6 months) and i’m worried as i’ve read about some people who have started balding after having this vaccine. Any thoughts? Thank you.

Yes, though it is very rare. The Center for Disease Control says, “For example, recent studies suggest that alopecia (hair loss) may rarely occur in persons who have received hepatitis B vaccine. While the mechanisms responsible for alopecia following vaccination are not certain, it could be immune-mediated.”

The most common cause in men is genes, and I don’t think you should be worried about losing hair from the vaccine.

Balding Forum - Hair Loss Discussion

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