What Causes Toenail Fungus?
Reviewed: Dr. Gromatzky
6. Medical Conditions
While perfectly healthy people can develop toenail fungal infections, it is more likely to happen in people that have existing medical conditions. If the patient has a weakened immune system, for example, then the body is not as effective at protecting itself against such infections.
Poor circulation is also a potential risk, as is diabetes. Skin conditions like psoriasis will also increase the patient’s chances of getting an infection. Another potential problem is injuries, including minor injuries, to the patient’s nail and/or skin. People with such conditions might find they get fungal toenail infections regularly and will need to take extra care to prevent them.
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