What causes smelly feet (and what to do about them) If you’ve ever noticed a bit of a ‘whiff’ when you slip off your shoes, you’re not the only one. Smelly feet – aka ‘foot odour’ or ‘bromhidrosis’ if you want to get technical – isn’t something most of us enjoy talking about, but it’s a fairly common problem. So we asked dermatologist Dr Liz Dawes-Higgs to help us understand the causes of smelly feet, and share her top tips to reduce any odour. What makes feet smell? While foot odour can have different causes, the leading issue is sweat. Did you know that each of your feet has around 250,000 sweat glands, and may produce up to a cup of sweat each day? That’s not necessarily a problem if you ‘air out your toes’ to allow the sweat to dry off. But Dr Liz says that in the wrong conditions, “this sweat can make your feet a breeding ground for certain kinds of odour-causing bacteria.” She explains that, “regularly wearing closed-in shoes or boots, especially in hot, humid conditi...