What happens when your nails are purple?

The most common cause of purplish nails is subungual hemorrhage. This is caused by external damage between the nail and nail bed, resulting in separation of the nail and nail bed, showing nail bed bleeding. Blood accumulates between the nail bed and nail, so purple symptoms are seen on the nail surface. It may also be due to glomus tumors in the nail bed, which may also be manifested as small areas of purple nails. Advise the patient to see if there is a history of trauma, such as being squeezed through a door or bruising. If there is no history of trauma, it is recommended to go to the hospital for treatment.