i recently did my blood test and my ca19.9 is elevated. went for endoscopy and colonoscopy two months ago doctors found some benign polyps. i was required to do a blood test over the next 2 years quarterly. i did the second time and the reading rose from 63.9 to 68. doctor told me that some people s reading are around this range. should not worry unless it increases to hundreds. quite worried. pls help
Serum ca 19.9 levels are not diagnostic.  If you worried too much, the best way is to undergo colonoscopies guided polypectomy or biopsy (to take tissue and sent for histopathological examination) then only cancer can be excluded.