Eli5: How do micro plastics get out of our bodies?

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I know a lot of people say they don’t but based on what iv seen we consume LOTS of micro plastics iv even seen a study that says we eat a credit cards worth a week if that’s true then there must be some way for our body to remove them since otherwise we’d have too much plastic in us I also heard that there is plastic in our livers and testicles . How does our body remove all of that and how much would donating blood help?

In: Biology

16 Answers

Anonymous 0 Comments

You most likely pass a lot of the larger pieces. We cannot filter plastic once it reaches the bloodstream. Our kidneys act like a filter, but it’s not like a Brita where someone comes along to dump it out. It gets caught wherever the capillaries terminate. Lungs, testicles, organs, subcutaneous tissue, brain… When it reaches a point where the blood vessels are too small to pass it it gets stuck. The immune system might activate cells to try to engulf it, like phagocytes, but there will still be nowhere for it to go. It reaches the lymphatic system and then back to the bloodstream if it doesn’t get stuck.They do not pass through the kidneys into the bladder. Donating blood can help, because the plastic likes to bind to cholesterol and red blood cells. Once the body starts to break those substances down, the plastic gets released into the body again.

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