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Thyroid UK
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Gum infection resulting in hashimotos?? Doxycycline????


I was diagnosed with hashimotos 4 years ago. Prior to that I had a cyst in my gum that didn't cause any pain. It is still there.

I was also referred to specialists by my dentist due to periodontal disease.

Is it likely these are linked? The doctor today told me the tooth underneath the cyst is infected and dead and has been for quite some time.

Should I start a course of doxycycline, which also appears to lower thyroid antibodies?? If so, how long should I take a course for??

Many many thanks

I have learned so much from this site.

4 Replies


An infected cyst and peridontal disease won't have caused Hashimoto's which is an autoimmune disease.

If your dentist has prescribed Doxycycline then you should take the course as directed. Take Doxycycline 2 hours away from Levothyroxine. If thyroid levels do drop then they will pick up after you finish the course.


Thanks very much for your reply Clutter. I had been reading some articles by Isabella Wentz and other medical journals published online which had highlighted a link between gum issues -the gut- Hashimotos.

I found these links credible but maybe I was picking up the wrong end of the stick. I will reread again. Thanks for taking the time to reply.

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