Englishman: I knew you would pick up on that. I’ve assumed that it was because if you prick the skin with an infected scissors then that would be enough for the fungus to penetrate into the skin.
Googling, I actually see a wide range of opinions from not contagious, not very contagious and highly contagious. So it sounds like I’m wrong. That wasn’t what I discovered when I researched it a few years ago and that’s not what I found to be true personally.
But I still don’t believe that toenail fungus can infect another toenail if the skin is unbroken.
Another way of infecting the toenail was as Health pointed out – if the skin gets infected that can lead to toenail fungus. *Skin* fungus most definitely is contagious.