1 doctor weighed in:

Does cancer always show up in blood tests if you have it?

1 doctor weighed in
Dr. Mark Kuhnke
Surgery

In brief: NO

Unless you're anemic (low blood count) or have leukemia, basic blood tests won't show cancer.
If you have true concerns, perhaps because of family tendencies, speak with your doctor. Good luck

In brief: NO

Unless you're anemic (low blood count) or have leukemia, basic blood tests won't show cancer.
If you have true concerns, perhaps because of family tendencies, speak with your doctor. Good luck
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