![Figure 1 from Blood and stool biomarker testing for colorectal cancer screening Technology Brief | Health Policy Advisory Committee on Technology | Semantic Scholar Figure 1 from Blood and stool biomarker testing for colorectal cancer screening Technology Brief | Health Policy Advisory Committee on Technology | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7fa93250b6202043db84590c4ec18eb577fb4271/7-Figure1-1.png)
Figure 1 from Blood and stool biomarker testing for colorectal cancer screening Technology Brief | Health Policy Advisory Committee on Technology | Semantic Scholar
![Dr. Google says black speck(s) in stools are surely blood. My physicians say it's a myth, blood is either liquid and red in water or it turns stools all black. Where is Dr. Google says black speck(s) in stools are surely blood. My physicians say it's a myth, blood is either liquid and red in water or it turns stools all black. Where is](https://qph.cf2.quoracdn.net/main-qimg-6e4a085e8e70d5de01fba763da900dc0.webp)
Dr. Google says black speck(s) in stools are surely blood. My physicians say it's a myth, blood is either liquid and red in water or it turns stools all black. Where is
![Blood in the Stool, a Sign of Colorectal Cancer - Vejthani Hospital | JCI Accredited International Hospital in Bangkok, Thailand. Blood in the Stool, a Sign of Colorectal Cancer - Vejthani Hospital | JCI Accredited International Hospital in Bangkok, Thailand.](https://www.vejthani.com/wp-content/uploads/2020/11/Colorectal-cancer-rectal-bleeding-1024x1024.jpg)