There are many medical websites, such as WebMD and MedlinePlus, that can provide information on skin fungal infections in humans. Medical professionals, medical journals and medical textbooks all provide ample information regarding how to deepen a person's study of skin fungal infections.
Fungi live in the air, soil, water and plants and reproduce through spores in the air, according to MedlinePlus. When the spores land on your skin, it can cause a skin fungal infection, also known as mycoses, according to MedlinePlus.
Fungal infections on the skin are very common. Some of the most common fungal skin infections are athlete's foot, jock itch, ringworm and yeast infections, according to WebMD. Athlete's foot involves a peeling, cracking and scaling of the feet and most commonly occurs between the two smallest toes.
Jock itch is an infection around the inner thighs, genitals and buttocks and is most common among people living in warm, humid climates. Ringworm appears as a red ring on the skin, or overlapping rings on the skin, and is often scaly. Yeast infections, caused by a yeast-like fungi known as candida, most commonly occur in the armpits and groin and appear as a red, itchy rash, according to WebMD.