The Diseases Database provides information about the relationships between medical conditions, symptoms, and medications (Rebhan, Chalifa-Caspi et al. 1997). Comprehensive disease classification, integration and annotation are crucial for biomedical discovery. There are a number of well-known and cited databases that provide a collection of human genes and genetic phenotypes (Hamosh, Scott et al. 2005). The Cancer Genome Atlas (TCGA) and the International Cancer Genome Consortium (ICGC) and so on, for more detail, we have compiled 84 disease databases for easier access by clicking the name of the database that will take you to the official database link.