Fungus infections of the nails. If you’re suffering from fungus growths in your nails, this can be an extremely strong indicator that you are also suffering from Candida. The two are extremely closely related. As a matter of fact, other seemingly external disorders such as ringworm or athletes’ foot, can also be indicators of a Candida infection. People usually try to treat these with casual products bought at their local medical store, but a persistent nail fungus infection will require that you be treated for Candida and that you possibly must make changes to your diet to eliminate the high sugar content that fuels the Candida.