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- Ringworm facts
- Is ringworm contagious?
- What does the term ringworm mean?
- What causes ringworm?
- What are the sources of skin fungi?
- What are risk factors for ringworm?
- What types of ringworm are there? What are ringworm symptoms and signs?
- Types of ringworm: tinea corporis and tinea cruris. What are the symptoms?
- Types of ringworm: tinea faciei and tinea manus. What are the symptoms?
- Types of ringworm: tinea pedis and tinea unguium. What are the symptoms?
- How is ringworm diagnosed?
- What is the treatment for ringworm? Are there home remedies?
- How can ringworm be prevented?
- What is the prognosis (outlook) for ringworm?
What causes ringworm?
Although the world is full of yeasts, molds, and fungi, only a few cause skin problems. These agents are called the dermatophytes (which means "skin fungi"). An infection with these fungi is sometimes known as dermatophytosis. Skin fungi can only live on the dead layer of keratin protein on top of the skin. They rarely invade deeper into the body and cannot live on mucous membranes, such as those in the mouth or vagina.
Scientific names for the most common of the dermatophyte fungi that cause ringworm include Trichophyton rubrum, Trichophyton tonsurans, Trichophyton interdigitale, and/or Trichophyton mentagrophytes, Microsporum canis, and Epidermophyton floccosum.