Conditions/Nail
Nail Discolouration
Nail discolouration refers to changes in the natural colour of the nail, which may appear yellow, white, green, brown, black, or blue.
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Quick Answer
Possible causes include fungal or bacterial infections, trauma, certain medications, nail cosmetics, and underlying medical conditions. The pattern of discolouration and associated nail changes help guide the diagnosis. Depending on the findings, management may involve topical or oral medication, protective nail care, or treatment of an associated medical condition.
Persistent or unexplained discolouration, particularly a new or changing dark band affecting a single nail, requires prompt dermatological assessment to exclude more serious causes.
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What is nail discolouration?
Nail discolouration refers to changes in the natural colour of the nail, which may appear yellow, white, green, brown, black, or blue. Possible causes include fungal or bacterial infections, trauma, certain medications, nail cosmetics, and underlying medical conditions. The pattern of discolouration and associated nail changes help guide the diagnosis.
How is nail discolouration treated?
Depending on the findings, management may involve topical or oral medication, protective nail care, or treatment of an associated medical condition. Persistent or unexplained discolouration, particularly a new or changing dark band affecting a single nail, requires prompt dermatological assessment to exclude more serious causes.
