A Blood Test for Cancer

Since many cancers don’t have symptoms early on, they may go unnoticed until they are at an advanced stage. But that is changing, thanks to a newer, non-invasive tool. Go to http://Brilliant.org/SciShow to try their Scientific Thinking course. Sign up now and get 20% off an annual Premium subscription. Hosted by: Hank Green SciShow is on TikTok! Check us out at https://www.tiktok.com/@scishow ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bryan Cloer, Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, Eric Jensen, Adam Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Sam Lutfi, Alisa Sherbow, Jason A Saslow, Dr. Melvin Sanicas, Melida Williams, Tom Mosner ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: http://www.scishowtangents.org Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Instagram: http://instagram.com/thescishow ---------- Sources: https://www.who.int/activities/promoting-cancer-early-diagnosis https://www.cancer.org/treatment/understanding-your-diagnosis/tests/imaging-radiology-tests-for-cancer.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6606043/ https://www.cancer.gov/about-cancer/diagnosis-staging/diagnosis#biopsy https://www.mayoclinic.org/diseases-conditions/colon-cancer/symptoms-causes/syc-20353669 https://www.thermofisher.com/blog/behindthebench/what-is-cell-free-dna-cfdna-seq-it-out-19/ https://onlinelibrary.wiley.com/doi/epdf/10.1111/brv.12413 https://www.frontiersin.org/articles/10.3389/fimmu.2019.00502/full https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7196304/ https://mcr.aacrjournals.org/content/14/10/898 https://cebp.aacrjournals.org/content/3/1/67.full-text.pdf https://pubmed.ncbi.nlm.nih.gov/9274585/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5898924/ https://www.nejm.org/doi/10.1056/NEJMe1401129 https://bmcpregnancychildbirth.biomedcentral.com/articles/10.1186/s12884-019-2518-x https://www.rbmojournal.com/article/S1472-6483(13)00466-5/fulltext https://www.mayocliniclabs.com/test-catalog/Clinical+and+Interpretive/113145 https://jamanetwork.com/journals/jamaoncology/fullarticle/2318964 https://www.frontiersin.org/articles/10.3389/fcell.2021.639233/full https://www.nature.com/articles/s41467-021-22463-y Images: https://www.shutterstock.com/image-photo/pet-ct-scan-human-brain-positron-1281190273 https://www.shutterstock.com/image-illustration/cell-free-dna-circulates-freely-blood-1251866005 https://www.shutterstock.com/image-illustration/blue-dna-structure-isolated-on-background-1786268912 https://www.shutterstock.com/image-illustration/illustration-showing-tumor-cell-free-dna-1695908125 https://www.shutterstock.com/image-vector/noninvasive-prenatal-testing-nipt-screening-genetic-1529573861 https://www.istockphoto.com/photo/3d-illustration-of-x-chromosomes-gm143921774-18531432 https://www.istockphoto.com/photo/dividing-breast-cancer-cell-gm477576278-66735807 https://www.frontiersin.org/articles/10.3389/fcell.2021.639233/full https://commons.wikimedia.org/wiki/File:CtDNA_in_circulation.png