One man's irrepressible body odor was the result of a bacterial infection of his armpit hair, according to a new report of the case.
The 40-year-old man told his doctors he'd had armpit odor and "dirty" armpit hair for the last four years.
There was a "creamy yellow" substance on the man's armpit hairs. Looking at the hairs under the microscope, the doctors saw that the hairs were surrounded by an "opaque material" that was only on the hair surface.
The doctors diagnosed the man with trichomycosis axillaris, which is an infection of hair shafts caused by the bacteria Corynebacterium tenuis, the researchers said. The infection can produce yellow, black or red masses around hair shafts.