How Often You Should Wash Your Feet
- posted: Mar. 25, 2025
- athlete's foot, Foot Care, Blog, foot doctor, foot fungus, podiatrist, Podiatry
How Often You Should Wash Your Feet
Your feet are home to billions of bacteria. How often should you wash them?
Jasmin Fox-Skelly, BBC
Both the UK's National Health Service (NHS) and US Centre for Disease Control (CDC), for example, advise washing feet daily with soap and water. One reason for this meticulous care is to prevent odour. The soles of the foot contain 600 sweat glands per square centimetre of skin, more than any other region of the body. Although sweat itself doesn't smell, it contains a nutritious broth of salts, glucose, vitamins and amino acids, which serves as an all-you-can-eat buffet for bacteria that live there. And there a lot of bacteria.
"The foot – especially between the toes – is quite a moist, humid, and warm environment, so it can be a breeding ground for microbes," says Holly Wilkinson, a lecturer in wound healing at the University of Hull in the UK. This is exacerbated by the fact that most people encase their feet in socks and shoes, trapping the moisture inside.
If you zoom in on any square centimetre of human skin you will find between 10,000 to one million bacteria living there. Warm and moist areas of the skin, such as the feet, are considered prime real estate and are home to the greatest numbers of species. Feet are idyllic havens for Corynebacterium and Staphylococcus bacteria, for example. When it comes to fungi, your sweaty feet are considered a utopia to genera including Aspergillus (a pathogen often found in soil), Cryptococcus, Epicoccum, Rhodotorula, Candida (a kind of yeast which naturally lives on the body but can become an opportunistic pathogen), Trichosporon and others. In fact, the human foot contains a greater biodiversity of fungal species than any other body region.
- posted: Mar. 25, 2025
- athlete's foot, Foot Care, Blog, foot doctor, foot fungus, podiatrist, Podiatry
How Often You Should Wash Your Feet
Your feet are home to billions of bacteria. How often should you wash them?
Jasmin Fox-Skelly, BBC
Both the UK's National Health Service (NHS) and US Centre for Disease Control (CDC), for example, advise washing feet daily with soap and water. One reason for this meticulous care is to prevent odour. The soles of the foot contain 600 sweat glands per square centimetre of skin, more than any other region of the body. Although sweat itself doesn't smell, it contains a nutritious broth of salts, glucose, vitamins and amino acids, which serves as an all-you-can-eat buffet for bacteria that live there. And there a lot of bacteria.
"The foot – especially between the toes – is quite a moist, humid, and warm environment, so it can be a breeding ground for microbes," says Holly Wilkinson, a lecturer in wound healing at the University of Hull in the UK. This is exacerbated by the fact that most people encase their feet in socks and shoes, trapping the moisture inside.
If you zoom in on any square centimetre of human skin you will find between 10,000 to one million bacteria living there. Warm and moist areas of the skin, such as the feet, are considered prime real estate and are home to the greatest numbers of species. Feet are idyllic havens for Corynebacterium and Staphylococcus bacteria, for example. When it comes to fungi, your sweaty feet are considered a utopia to genera including Aspergillus (a pathogen often found in soil), Cryptococcus, Epicoccum, Rhodotorula, Candida (a kind of yeast which naturally lives on the body but can become an opportunistic pathogen), Trichosporon and others. In fact, the human foot contains a greater biodiversity of fungal species than any other body region.
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