When doing a colonoscopy, then sending the polyps for a biopsy. would they let you know if the polyps were fap, or in other words that the patient has fap?

People with FAP have thousands of polyps. For info visit this site also: https://www.mayoclinic.org/diseases-conditions/familial-adenomatous-polyposis/symptoms-causes/syc-20372443

People with FAP should be tested every 1-2 years starting at age 10-12. Those individuals with AFAP should undergo colonoscopy beginning at age 18-20. The patient is always told of their condition. Yearly colonoscopy is done, than surgery if planned.