A fungal skin infection happens when a fungus (such as yeast or mold) grows and creates a reaction on your skin surface.

What Do Different Types of Toenail Fungus Look Like? You can pick up a toenail fungus from your environment. They often get in through small cracks in the nail or the skin around it.

See pictures of eight different types of skin diseases in this article. Human skin diseases can be caused by bacterial, viral, or fungal infections.