What OSHA's Latest Data Says About Musculoskeletal Disorders

Musculoskeletal disorders (MSDs) — injuries to muscles, nerves, tendons, joints, cartilage, and spinal discs — remain among the most common and costly categories of workplace injury in the United States. Federal data tells a consistent story about where they concentrate and why they persist.

MSDs are a leading driver of lost-workday injuries

According to the U.S. Bureau of Labor Statistics Survey of Occupational Injuries and Illnesses, MSD cases account for roughly 30% of all worker injury and illness cases involving days away from work. The median days away from work for MSD cases consistently runs higher than the all-injury median, reflecting their slow, expensive recovery.

Where they strike

The back remains the most frequently affected body part, followed by the shoulder and the hand/wrist. Repetitive motion cases, while smaller in total count, carry among the highest median days away from work — sometimes double the all-injury median — because cumulative-trauma injuries heal slowly and recur easily.

Which industries carry the most risk

Healthcare, transportation and warehousing, manufacturing, and construction consistently rank among the highest-MSD-rate sectors. But office and knowledge work is far from exempt: NIOSH documents that prolonged computer use is a significant contributor to upper-extremity and neck disorders, and the shift to remote work has widened exposure across desk-bound roles.

Why MSDs persist

Unlike acute injuries, MSDs develop gradually and are often underreported until function is impaired. The CDC/NIOSH ergonomic guidelines emphasize that most are preventable through workplace design — task variation, workstation fit, force reduction, and training — rather than personal protective equipment alone.

What this means for employers

OSHA's Safety Pays program models the full cost of an injury — including indirect costs like training, lost productivity, and administrative burden — at roughly 2.7× the direct medical and indemnity cost. Proactive ergonomic programs target the root exposures the data identifies, reducing both frequency and severity. The federal evidence is clear: MSDs are predictable, concentrated, and largely preventable.