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This study investigates the diagnostic practices for mucormycosis among 30 French University Hospital mycology laboratories, in 2024. All laboratories perform both direct examination and culture, with fluorescent brighteners being the most commonly used method for direct examination. While 77 % of the participating laboratories routinely identify Mucorales to the species level, with 70 % having adopted Mucorales-specific quantitative PCR, primarily for the diagnosis of invasive fungal infections. Antifungal susceptibility testing practices varied between centers, with 36.7 % of laboratories consistently performing these tests, primarily using gradient concentration strips. Amphotericin B, posaconazole, and isavuconazole were the most frequently tested antifungals. These findings highlight variations in laboratory practices and emphasize the importance of establishing uniform diagnostic and susceptibility testing methods to optimize mucormycosis management., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Eric Dannaoui has received research grants from Biomérieux: travel grants from Gilead, Mundipharma, and Pfizer; speaker's fee from Mundipharma, Pfizer, and Gilead. Kévin Brunet has received travel grants from Pfizer and Gilead and speaker's fee from Gilead. Laurence Millon has received travel grants from Gilead and Pfizer; speaker's fee from Gilead and Pfizer. Marjorie Cornu received travel grants and speaker's fee from Gilead and Pfizer. The other authors have no conflicts of interest to disclose., (Copyright © 2024 SFMM. Published by Elsevier Masson SAS. All rights reserved.)