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This is a very interesting situation for you.
However, fortunately this does not suggest any liver or kidney disease.
The condition is known as atypical chromhydrosis.
The sweat glands can produce pigmented sweat for unknown reasons.
There is no specific treatment required or available.
If you do not have any other symptoms, you do not need to worry about any other condition.
Here is the link to one such case report:
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