This brochure presents data from the 2023 Musculoskeletal Disorders (MSD) Screening Weeks conducted in the Pays de la Loire region. During the 2023 Screening Weeks, 32% of employees seen as part of their return to work following a leave of absence, or in preparation for that return, were diagnosed with an MSD by the occupational physician. This rate is 17% for employees seen during their periodic check-ups. The frequency of reported MCPs varies little across different sectors of activity. Musculoskeletal disorders (MSDs) account for 46% of reported MCPs. When these fall under the category of occupational diseases, the majority (86%) of employees have not initiated any steps to apply for recognition from their Social Security office. Depression, occupational burnout, and other forms of work-related psychological distress represent the second largest group of reported MCPs (37%).