Dogs have sweat glands on their paws that allow them to perspire. When the area between the pads gets hot and humid, bacteria and yeast multiply. These bacteria and yeasts are responsible for the popcorn smell, but are generally harmless. Observe if your pet licks its paws excessively, if its coat becomes reddish between the toes, and if it seems to be causing discomfort. Come and see us in store for more information if this is the case.