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A member asked:
I have a bump under my thumbnail. no other fingernails are affected. i have hypothyroidism. what could be the cause?
4 doctors weighed in across 3 answers
Not sure but it: Could just be from a bruise. Take care!
Answered 11/27/2017
4.5k views
Nail Bump: Likely a single bump on a nail is caused by trauma. Nail disorders associated with thyroid disease are usually on multiple if not all the nails.
Answered 7/31/2016
4.5k views
If your thyroid: Level has been normalized by the proper amount of brand name T4 replacement, the bump is not due to your thyroid. There are many possible causes. Have your doctor take a look at it and help figure it out.
Answered 7/8/2019
4.5k views
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