Foul-smelling armpits occur when bacteria break down skin sweat that would otherwise be odorless. Some people sweat more than others and have a condition called. Combating body odor · Clothing · Poor hygiene · Fruits and vegetables Smelly armpits occur when bacteria break down skin sweat that would otherwise be odorless. Body odor is what you smell when sweat comes in contact with bacteria on your skin.
Sweat itself doesn't smell, but when skin bacteria mix with sweat, they produce an odor. Body odor may smell sweet, sour, spicy, or onion. The amount you sweat doesn't necessarily affect body odor. This is why a person may have an unpleasant body odor but not sweat.
On the contrary, a person may sweat excessively but not smell. That's because body odor is the result of the type of bacteria in the skin and the way that bacteria interact with sweat, not the sweat itself. Body odor occurs when sweat interacts with skin bacteria and when the apocrine glands in the armpits secrete an odor. Sweat is responsible for bad armpit odor.
Sweating is a normal and necessary body function that prevents people from overheating. The Swiss study also suggests that the use of deodorants may be more important for women, as an independent panel of sniffers found that the smell of sulfur onions was more disturbing than the masculine cheese fragrance. If regular deodorant makes your skin itchy or burns, the natural route of deodorants may be your best bet to combat armpit odor.