So, you know how sometimes your feet can smell a bit yucky? That's called foot odour! It happens when there are tiny bacteria that live on your feet and they create a smell.
When we wear shoes and socks, our feet get all sweaty. This is because our feet have lots of sweat glands. So when our feet sweat, it creates a damp environment which helps the bacteria grow. When the bacteria grow, they create a smell.
But there are some ways to make sure your feet don't smell! You can wash your feet every day and dry them really well. You can also wear socks made from cotton or bamboo because they absorb moisture better than other materials. And you can make sure to change your socks every day and alternate your shoes so they have a chance to dry out in between wears. And if your feet do start to smell, you can even use special sprays or powders that help get rid of the smell!