Your provider may inquire about potential causes, such as recent nail injuries, consistent exposure to moisture or chemicals, ...

Injuries can cause toenail discoloration due to a subungual hematoma, which involves blood and fluid collecting under the nail. A red area will appear that may turn purple over time and then brown ...

A common cause of these spots is an injury to your nail matrix. White spots that occur due to an injury are called leukonychia. These injuries can occur if you accidentally close your finger in a ...