Occupational skin disease.

Occupational skin diseases are the most frequent occupational diseases. Certain industries are at a particularly high risk. Important factors to consider include percutaneous absorption and alterations in resistance to microbial agents. The most common condition is contact dermatitis, usually irritant but frequently causing allergy. Other selected conditions include photosensitization, acne and chloracne, fiberglass dermatitis, pigmentary changes, and skin tumor. The approach to the patient and diagnostic criteria for occupational skin disease are described.