This article was reviewed by Felix Gussone, MD. In this guide, we’ll break down what most biomarker lab tests measure, how to prepare for them, and what to do once you receive your results. Not ...

The U.S. Preventive Services Task Force recommends colorectal cancer screening for all adults starting at age 45. After age 75, the task force recommends talking with your health care team to decide ...

At-home gut health tests use DNA or RNA sequencing from a stool sample. Testing your gut health cannot replace an official diagnosis from a doctor. Your results may provide insights into gut ...