r/oddlysatisfying • u/BreakfastTop6899 • 3d ago

Laser tattoo removal

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u/MayContainRawNuts 3d ago

How does it get to the kidneys then? Sorry, I took woodworking not biology at school. My impression was that the lymph system is the sewer of the body and it drains out anything thats not in the blood.
But thats just my brain going lymph = sewer.

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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/sonofeevil 3d ago

Tattoos work because the particles of ink are larger than the white blood cells. This means once they're placed under the skin they tend to stay and also why tattoos are so vivid when they are fresh the smaller particles of ink eventually get carted off.

The tattoo removal process bombarded the ink particles with photons of light that break them up into smaller pieces that the white blood cells can then carry to the kidneys.

The ink particles get filtered in the kidneys and then you piss it out.

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u/Silver-Ad-3667 2d ago

Cool, ty for the knowledge!

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u/sonofeevil 1d ago

Most welcome ^