In the past year, a total of 633 individuals underwent changes to their gender registration in population records and civil status documents, as reported by The Brussels Times.

This process is tailored for those who feel that their birth certificate does not accurately reflect their personal gender identity. Individuals are able to declare the necessary changes before a civil status officer in the municipality where they are registered in the population or foreigner’s registry.

The overall number of such modifications surpassed previous years, with 569 changes in 2022 and 513 in 2021. Notably, a majority of these adjustments were made by individuals aged between 18 and 29, while there were 52 changes recorded for those under 18.

Details here - https://frontpress.net/in-2023-belgium-witnessed-unprecedented-alterations-in-gender-registrations-setting-a-new-record/