Final answer:
Bacteria and fungi can grow between the toes causing various skin infections when the feet are constantly wet.
Step-by-step explanation:
When the feet are constantly wet, bacteria and fungi can grow between the toes causing various skin infections. This is especially common in moist environments such as sweaty shoes, communal showers, and locker rooms. One example of a fungal infection of the skin is athlete's foot, which is caused by fungi that are found in the normal skin microbiota and can be spread through contact with contaminated surfaces or objects.