Moist Environments: Fungi thrive in warm, damp places like sweaty shoes, public showers, and locker rooms. Poor Foot Hygiene: Not keeping feet clean and dry can allow fungi to grow. Injury to the Nail: Cracks or trauma to the nail can give fungi an entry point. Walking Barefoot in Public Areas: Especially on wet surfaces like gym showers or pools. Wearing Tight Shoes: Rest... https://zanaquick.com/blogs/news/what-is-nail-fungus