What Could Cause The Foulest Smelly Diarrhea. The viruses most often responsible for diarrhea include norovirus, rotavirus, or. Usually, sulfur burps are caused by the way our bodies break down food in the gut which creates a gas called hydrogen sulfide.

Viruses are important causes of diarrhea. Diarrhea can contribute to an offensive odor in the buttock area due to the liquid consistency. Usually, sulfur burps are caused by the way our bodies break down food in the gut which creates a gas called hydrogen sulfide.