Whole genome bisulfite sequencing is a powerful method used to analyze DNA methylation across the entire genome. By treating the DNA with bisulfite, it selectively converts unmethylated cytosines to uracil, leaving methylated cytosines unchanged. This technique provides comprehensive insights into the methylation patterns of genes and regulatory regions, allowing researchers to explore epigenetic modifications in various biological processes and diseases. Whole genome bisulfite sequencing has become an essential tool in epigenomics, offering high-resolution mapping of DNA methylation on a genome-wide scale.