Oral infections are conditions that occur in the mouth, often caused by bacteria, viruses, or fungi. Common types include cavities, gum disease, and oral thrush. Symptoms may include pain, swelling, and difficulty eating or speaking. These infections can affect anyone but are more common in individuals with poor oral hygiene or weakened immune systems. Treatment typically involves good oral care, medications, and sometimes dental procedures. Regular visits to a dentist can help prevent these infections and maintain overall oral health.