Which of the following statements about tinea is true?

Tinea refers to a group of skin infections caused by fungi, commonly known as dermatophytes. The statement that all forms of tinea are contagious is correct. Tinea infections can easily spread from person to person through direct contact or indirectly via contaminated surfaces, such as towels or shower floors. This characteristic of being contagious is vital for understanding how these infections transmit and necessitate caution in communal environments, such as gyms or swimming pools.

The other options present misunderstandings about tinea. While some forms might be less severe than others, they are not all harmless. In fact, untreated tinea can lead to more serious health issues. Not all forms of tinea are devoid of treatment; they typically require antifungal medications to resolve effectively. Lastly, tinea is caused by fungi, not bacteria, highlighting the distinction between these two types of pathogens. Understanding these aspects of tinea emphasizes the need for proper hygiene and treatment to manage and prevent its spread.