Does stomach cancer show up in blood tests

Making sense of test results

Results from lab tests, imaging, and biopsies are often posted in your patient portal before your doctor can discuss them with you. It is normal to feel anxious and want to know right away what the results are and what they mean.

But your doctor is the best person to explain the results from all your tests and what they mean for you.

Lab tests used to diagnose cancer

High or low levels of certain substances in your body can be a sign of cancer.

So lab tests of your blood, urine, and other body fluids that measure these substances can help doctors make a diagnosis.

What blood test shows cancer

However, abnormal lab results are not a sure sign of cancer. Lab test results are used along with the results of other tests, such as biopsies and imaging, to help diagnose and learn more about a person’s cancer. 

It is important to keep in mind that lab results for healthy people can vary from person to person.

Reasons for these differences include age, sex, race, medical history, and general health. In fact, your own results can vary from day to day.

would a regular blood test show cancer

will a routine blood test detect cancer