If you notice gray earwax in your ear canal, there are two possible explanations. It may be caused by dust pollution, especially in large cities.
Earwax, or Genetic Factors. According to the book *Guide de l’audition* by Bruno Frachet and Émilie Vormès, earwax is genetically determined. For example, Asians and Native Americans have dry, gray earwax, while Caucasians and Africans have moist, honey-brown earwax.
