The simple answer is because fungal organisms prefer warm, dark and moist places to cold, light and dry environments. Toes are often in socks and shoes, which create the warm and dark conditions where fungus thrives. And at times (for example during exercising) toes and feet can be moist for long periods of time, again providing the right conditions for fungal development.
The second reason comes down to the way fungal infections are transmitted. All fungus infections are caught through contact with infected matter and a large proportion of infections take place in communal environments such as fitness Fungus Clear centers, swimming pool changing rooms and public locker rooms. In these places your feet are more likely to come into contact with an infection than your fingers. It’s possible of course to pick up a nail fungus by touching an infected locker door for example, but your feet will have the opportunity to come into contact more often, especially if you are barefoot.
Thirdly, the fungus that causes Athlete’s foot can spread to your nails. Athletes foot is a result of an infection from a skin fungus known as a dematophyte. The same fungus is also the cause of many nail fungus infections. Similarly, if you have nail fungus, it could also cause athlete’s foot.
If you do pick up a fingernail fungus the good news is that you’re likely to get rid of the nail fungus infection more quickly than if it was on your toenail. This is because fingernails grow about twice as fast (6 months on average to completely grow out) than toe nails (12-18 months). You’ll only be completely clear of the infection once the nail grows out in full. The downside, of course, is that fingernails are more visible than toenails so the condition can be more embarrassing or unsightly.
Both fingernail and toenail fungus infections are curable diseases. The type of treatment that will be right for you will depend a great deal on the severity of your infection, what part of the nail is infected (distal edge, lateral, proximal edge) how many nails are infected and how quickly the nail fungus is growing. We’ve put together a comparison chart showing which treatments are best suited to levels of infection. These apply whether your infection is of the toenail or fingernail.