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Ringworm on Scalp Causes

Dermatophytes can be found in humans, other animals (most commonly household pets such as cats, dogs, and farm animals such as cattle), and soil. Fungal spores can be transmitted through contact with an infected person, fallen infected hairs, or fomites, which are contaminated objects. These may include objects such as barbershop instruments, hats, movie theater seats, hairbrushes, bedding, and clothing. Contact alone with one of these carriers may not be enough to cause an infection. However, coupled with minor trauma to the scalp, such as scratches or tight braiding, spores can enter through the stratum corneum (a layer of the skin). Here, dermatophytes invade and digest the tissue's keratin (a type of protein) as the organisms grow.