Researchers said they found chipping or cracking in the coating of a sampling of nearly all the fluorescent bulbs they examined.
The chips and cracks in the bulbs allow ultraviolet rays to escape.
The study found that skin cells exposed to fluorescent light showed the same damage as those exposed to ultraviolet light.
However, experts said the risk is small since most people work within five to six feet of the bulbs.
Dermatologists recommend using sunscreen every day.