Precision medicine has not only impacted drug development but also drug discovery and disease diagnosis, allowing scientists to use molecular characteristics to define cancers. Thanks to the recent advances, a variety of genomic and molecular analyses have now been developed to investigate tumors precisely.

Today, precision oncology encompasses newer technologies that have progressed:
1. from detecting mutations at a single site to multiple sites simultaneously,
2. from low-throughout to high-throughput sequencing, and
3. from multicell hybrid detection to single-cell precision detection.
In this feature, we put together an overview of current technologies that pervade the field.