What do the results mean?If the test was used to find out how advanced your cancer is (cancer stage), the results may show how much cancer is in your body and whether it is likely to spread.If the B2M test was used to check how well your treatment is working, your results may show:Your B2M levels are increasing. This may mean your cancer is spreading, and/or your treatment is not working.Your B2M levels are decreasing. This may mean your treatment is working.Your B2M levels have not increased or decreased. This may mean your disease is stable.Your B2M levels decreased, but then later increased. This may mean your cancer has come back after you've been treated.If you have questions about your results, talk to your health care provider.Learn more about laboratory tests, reference ranges, and understanding results.
