Which type of paronychia is typically caused by a bacterial infection?

Acute paronychia is primarily caused by a bacterial infection, often resulting from trauma or injury to the nail fold, such as hangnails, biting, or exposure to irritants. This condition can lead to inflammation, redness, and pus formation around the fingernail or toenail due to organisms like Staphylococcus aureus. In contrast, chronic paronychia is usually associated with fungal infections and prolonged exposure to moisture, which causes a different set of symptoms and underlying mechanisms. Thus, when identifying the type of paronychia linked to a bacterial infection, acute paronychia is the correct choice.