Final answer:
Ringworm is a fungal infection caused by fungi, primarily Trichophyton species. It manifests as a ring-shaped rash and is treated with antifungal medications. If treatment fails, further testing is done to identify the fungus and adjust the treatment accordingly.
Step-by-step explanation:
What Causes Ringworm?
The skin condition known as ringworm is misleading by name as it is not caused by an actual worm. Instead, ringworm is a type of infection that arises from fungi, specifically a group known as Trichophyton. These fungi are part of the superficial mycoses that affect the skin, hair, and nails, and they thrive by breaking down keratin, which is abundant in these areas. Ringworm presents as a characteristic ring-shaped rash that may appear on various parts of the body including the arms, legs, head, neck, or trunk.
It is also important to note that these fungi are the same ones that cause athlete's foot when they infect the skin between the toes. Ringworm can be treated with antifungal creams and powders available over-the-counter, and in more persistent cases, prescription oral medications may be required. If the initial treatment is ineffective, a physician may perform further tests to identify the specific species of fungus responsible for the infection and provide an appropriate treatment plan.