Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 different types of cancer from a single blood draw, while full-body MRI scans, ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...

A new kind of blood test promises to find cancer early—sometimes even before symptoms appear. The pitch is compelling: a single sample of blood could scan the body for dozens of different cancers at ...

Following your doctor’s instructions is the most important part of preparing for a blood test. Sleeping well, staying hydrated, and avoiding certain foods and drinks can also provide benefits. Blood ...

Scientists have developed a highly accurate blood test that can detect brain tumours, including aggressive glioblastomas, with over 90% precision. By identifying specific proteins in the blood, the ...

A blood osmolality test measures the blood for the concentration of certain dissolved particles. This test can show whether a person has an irregular balance of fluids in their body. Osmolality tests ...