When we examine a bald area on a patient, we eliminate fungal infections ( ringworm), bacterial, as well as injury and allergy.Ringworm is a fungal organism living in the skin which may never actually cause clinical problems. When we do diagnose ringworm, treatment is usually routine. The organism is a zoonose, meaning people can be infected as well.There are many illnesses shared by all animals, including us. In the case of a zoonotic infection, we culture the organism to identify it as a precaution.