what makes your gas smell like rotten eggs
The gas that makes up a fart includes nitrogen, oxygen, carbon dioxide, hydrogen, and methane. For the most part, these flatulence gases are odorless, but can become stinky when other gases are added, such as sulfates (sulfates are why your farts smell like rotten eggs). The sulfates are added in two ways. First, if the gas stays in the intestines for too long, bacteria start adding sulfates.