High glucose levels (hyperglycemia) put diabetics at higher risk for fungal infections. For diabetics, these infections are more than uncomfortable. Diabetes also compromises circulation and the immune system, making it more difficult to fight off infection. Additionally, any open sores that develop create a gateway for other infections to invade and cause potential complications. However, if you know how to identify and prevent skin fungal infections, you’ll catch any problems in the early, more easily treated stages.