(Includes MeSH 2023 changes) The MeSH 2024 Merge Report describes cases where two or more terms have merged into a single term. The term(s) being merged into another term become(s) an Entry Term. Merges can be between Descriptors and Supplementary Concept Records (SCRs), between Descriptors, or between SCRs. This report includes MeSH changes from previous years, starting from 2023.