Hey I'm male 17 and I've noticed that occasionally right at the end of a urination there is a small amount of an insoluble substance that is in my urine. It doesn't cause any burning and it only happens every month or so and between these events i have transparent urine with no pain. Does anyone know what it might be or have experienced similar conditions?
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Substance in urine.
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There can be several causes of insoluble stuff in urine (often called 'gravel'), but it often means you are in danger of kidney stones, and you should get it analysed.
This article might be relevant.
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I agree!I've had them and it's very, very painful!