Image by Prio via Flickr The most common infection of the toenails is a fungal one. This is because fungus grow best in areas where there is a lot of heat and humidity present. This is quite true for the feet, which are commonly kept in socks and shoes all day. If you know what the causes of fungal nail infections are, you can help take action to ensure that you are not affected. One of the biggest risk factors is communal bathing. Fungus is highly contagious, so if you are in the shower at the gym, you are likely to get it if someone else who is showering there has it. Another big risk factor comes from spending time in saunas or spas. This is, again, because it is contagious and these are two other areas where you will commonly find people who are not wearing footwear. If you wear shoes constantly, every day, you are at a high risk for developing fungus. You should try to keep your feet cool and dry at all times.

Original Source of Causes of Fungal Nail Infections