Try LMNT at DrinkLMNT.com/SciShow. Thanks to LMNT for sponsoring this video. So you probably have organs that you could literally live without, but did you know that the reverse can also be true? You may, in fact, be living with multiple spleens already! Hosted by: Stefan Chin (he/him) SciShow is on TikTok! Check us out at www.tiktok.com/@scishow ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos González, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: scishow-tangents.simplecast.com/ Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Instagram: instagram.com/thescishow #SciShow #science #education ---------- Sources: medlineplus.gov/spleendiseases.html www.sciencedirect.com/science/article/pii/S1743919117305964 www.chp.edu/our-services/transplant/liver/education/organs/spleen-information www.hindawi.com/journals/tswj/2013/321810/ www.ncbi.nlm.nih.gov/books/NBK519040/ bmcsurg.biomedcentral.com/articles/10.1186/s12893-019-0510-z www.ncbi.nlm.nih.gov/pmc/articles/PMC1443415/pdf/bmjcred00522-0011.pdf www.ajronline.org/doi/full/10.2214/AJR.11.7896 www.cureus.com/articles/92218-accessory-spleen-a-rare-and-incidental-finding-in-the-stomach-wall www.nature.com/articles/s41536-018-0039-2 www.ahpba.org/wp-content/uploads/2021/07/Michalopolus-Nature-reviews.pdf www.nih.gov/news-events/nih-research-matters/cells-maintain-repair-liver-identified Image Sources: www.gettyimages.com/detail/photo/appendix-pain-royalty-free-image/496193169?phrase=appendix&adppopup=true www.gettyimages.com/detail/photo/illustration-of-male-gallbladder-royalty-free-image/588999006?phrase=gallbladder&adppopup=true www.gettyimages.com/detail/photo/spleen-a-part-of-human-internal-organ-system-royalty-free-image/1216386984?phrase=spleen&adppopup=true www.gettyimages.com/detail/photo/anatomically-accurate-3d-illustration-of-human-royalty-free-image/1355963088?phrase=spleen&adppopup=true www.gettyimages.com/detail/illustration/lymphaticsystem-royalty-free-illustration/1295795957?phrase=spleen&adppopup=true www.hindawi.com/journals/tswj/2013/321810/ commons.wikimedia.org/wiki/File:CT_of_a_normal_abdomen_and_pelvis,_axial_plane_49.png www.gettyimages.com/detail/photo/man-hand-taking-medicine-royalty-free-image/1029339748?phrase=antibiotic&adppopup=true commons.wikimedia.org/wiki/File:Pneumococcal_polysaccharide_vaccine_(PPV23).jpg commons.wikimedia.org/wiki/File:CT_scan_of_an_accessory_spleen_-_Annotation.jpg commons.wikimedia.org/wiki/File:Nebenmilz.jpg www.gettyimages.com/detail/illustration/spleen-x-ray-blue-realistic-torso-royalty-free-illustration/1370731503?phrase=spleen&adppopup=true www.gettyimages.com/detail/photo/fresh-pineapple-fruit-on-yellow-background-royalty-free-image/1371207687?phrase=pineapple&adppopup=true www.hindawi.com/journals/tswj/2013/321810/ www.gettyimages.com/detail/illustration/spleen-cross-section-royalty-free-illustration/472035344?phrase=spleen&adppopup=true commons.wikimedia.org/wiki/File:Splenomegalie_bei_CLL_(labeled).jpg commons.wikimedia.org/wiki/File:Thoracic_splenosis_-_CT_scan_Case_188_(5927530992).jpg commons.wikimedia.org/wiki/File:Thoracic_splenosis_Case_187_(5927529392).jpg commons.wikimedia.org/wiki/File:Pancreas%2Bspleen-tuberculosis.jpg www.gettyimages.com/detail/photo/spleen-female-organs-human-anatomy-royalty-free-image/528137423?phrase=spleen&adppopup=true www.nature.com/articles/s41536-018-0039-2 www.gettyimages.com/detail/photo/human-liver-anatomy-royalty-free-image/1063318250?phrase=liver&adppopup=true www.gettyimages.com/detail/photo/unrecognizable-doctor-holding-highlighted-handrawn-royalty-free-image/1360829966?phrase=spleen&adppopup=true