My body odor has changed in recent months and is now strongly sulfurous. Why might this be?

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Sometime in the last 6 months my body odor began to change. It has shifted from a musky smell to a more acrid sulfurous/onion smell. The most significant change that has occurred in this time has been moving in with my girlfriend. Even if I scrub my armpits very well with soap and hot water, the smell will often be there almost immediately after showering. Thanks, Ben


Hi Ben, thanks for your question. The environmental change might have led up to a (slight) difference in underarm microbiome. Probably Staphylococcus hominis or some other species gained dominance in the underarm leading up to more sulfurous odors. They inhabit the inside of the skin as well, so it's not easy to get rid of them. Best, Chris