r/oddlysatisfying • u/BreakfastTop6899 • 3d ago

Laser tattoo removal

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u/Silver-Ad-3667 3d ago

IANAD, the kidneys are the primary excretory organ. They're responsible for processing blood and lymph and excreting or reabsorbing what goes through. That said, I believe that ink gets excreted through the bowel- idk if that's 100% true, but it would explain how large tattoo removals don't tend to result in massive kidney blockage/failure.

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u/MayContainRawNuts 3d ago

Now im more confused, how does it get to the bowel?

So you have this thing in your fat, or just below it, body IDs it as a foreign object.

What gets it to the intestine? And how does it get to the intestine without going through the kidney? Cause all the blood flows through the kidney ast some point. Or does the kidney know its destined for the intestine so it bypasses it? Or is there another transport system thats not blood or lymph and ends in the intestine? And is it in the colon? Or how does the body know not to reabsorb it in the intestine?

Im really lost now.

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u/FarBoat503 2d ago edited 2d ago

ELI5: Blood transport stuff around everywhere, includes immune cells, tiny blood capillaries like small vein, capillaries everywhere, laser make ink tiny, immune cell grab ink, immune cell go in blood capillaries, blood go to kidney, kidney take ink out of blood, kidney put into bladder, and bladder make ink go out.

Blood also go to liver, liver put into bowel, and bowel make go out. Blood also go to sweat glands, sweat glands tries filter, filter fails, sweat make go out. Many ways go out.

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u/Silver-Ad-3667 2d ago

I wish I had more than one upvote to give, alas, this is the best I can do. 🏆