what does fungi cause
Yeasts, molds, and different kinds of fungi can cause fungal nail infections. Most are caused by the same type of fungus that causes athlete's foot. Fungi grow best in warm, moist places, and they can spread from person to person.You can get a fungal nail infection from walking barefoot in public showers or pools or by sharing personal items, such as towels and nail clippers.opic Overview. A fungal nail infection occurs when a fungus attacks a fingernail, a toenail, or the skin under the nail, called the nail bed. Fungi (plural of fungus) can attack your nails through small cuts in the skin around your nail or through the opening between your nail and nail bed.