Cause of Foot Odour
Foot odour is most often caused by bacteria on the skin reacting with moisture (sweat) to release unpleasant odour.
Although sweat is odourless in itself, once mixed with natural bacteria on the feet, unpleasant odour can occur.
Bacteria multiply – particularly in warm weather – so that even after washing your feet or using a typical foot deodorant, the odour will not disappear because the bacteria are still present.