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A member asked:
Can you tell the difference between nodular melanoma and a blood blister?
5 doctors weighed in across 2 answers
In most cases: A melanoma can present with almost any appearance. A nodular melanoma is firm and raised usually and will not go away on its own whereas a blood blister is soft and fluid containing usually and will go away on its own. If there is any question see a dermatologist.
Answered 9/14/2016
4.7k views
Fluid: A blood blister usually has more of a fluid component, especially soon after the trauma. A blood blister should gradually resolve within a month, but a melanoma will persist or grow bigger in that time span. The most definitive method for differentiation is a biopsy or a sample of the area for review under the microscope by a pathologist.
Answered 9/28/2017
4.6k views
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