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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Dark Patches On Legs?

Over the past three y ears I gave seen dark bloches simular to bruises on my legs they are not going away the seem to not be progressing then suddenly ill see one appear I went to a dermotologist they cannot explain someone said maybe im deficient in some vitamin or mineral they are not painfull just ver unsightly I am african american in complexion. Thank you for any input and posdibly shead light . .
Tue, 16 Jan 2018
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Dermatologist,  's  Response
Asymptomatic dark colored patches over leg which initially are red colored and progressively turns brown are most likly to be papular purpuric dermatosis(PPD).
These patches mostly occurs below knee and more numerous near ankle
There is not any treatment for these patches and it resolves spontaneously within few years without treatment. Just need to apply moisturizing lotion three times a day.
PPD usually develope as a result of leakage of blood from capillaries.
PPD may occurs in normal individuals but some diseases predispose the condition like diabetes, hypertension, coagulopathy.
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What Causes Dark Patches On Legs?

Asymptomatic dark colored patches over leg which initially are red colored and progressively turns brown are most likly to be papular purpuric dermatosis(PPD). These patches mostly occurs below knee and more numerous near ankle There is not any treatment for these patches and it resolves spontaneously within few years without treatment. Just need to apply moisturizing lotion three times a day. PPD usually develope as a result of leakage of blood from capillaries. PPD may occurs in normal individuals but some diseases predispose the condition like diabetes, hypertension, coagulopathy.