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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Blackish Streak From Top To Bottom Of Right Big Toe?

hi my two big toes have been fungal for two or three years. i have used no oral treatment so far , but i am going to begin today. MY BIG TOES ARE THICK AND BLACKISH WITH MY RIGHT BIG TOE HAVING A BLAKISH STREAK FROM TOP TO BOTTOM. i noticed it about two years ago appearing and disappearing when i used vinager on it. the streak is now there without my having used any vinager for two or three weeks. A dermatologist was suspected of melanoma last night, but did not recommend biopsy. my left big toe looks to have less colorful,slimmer sreaks,too. what is your view on this? I appreciate your answering the question
Mon, 5 Dec 2016
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General & Family Physician,  's  Response
Hello,
First of all I would like to tell that the streak you explained is unlikely to be a melanoma.
Melanoma's to explain in general terms would be a mole growing without no control. You might monitor closely for growing size of the lesion progressively and irregular margins. If the lesion is constant then the chances of melanoma are low.Moreover you mentioned that the streak goes away when you use vinegar, a melanoma doesnt go away.
Secondly, if you are prone to fungal infections then there are chances the lesion a result of that. I would advise you to start with oral antifungals alongside topical. Maintain feet hygiene.
If your nails appear broken then it can be a sign of iron deficiency as well.

Follow up with your doctor if the lesion grows or if additional signs like fever develops.
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What Causes Blackish Streak From Top To Bottom Of Right Big Toe?

Hello, First of all I would like to tell that the streak you explained is unlikely to be a melanoma. Melanoma s to explain in general terms would be a mole growing without no control. You might monitor closely for growing size of the lesion progressively and irregular margins. If the lesion is constant then the chances of melanoma are low.Moreover you mentioned that the streak goes away when you use vinegar, a melanoma doesnt go away. Secondly, if you are prone to fungal infections then there are chances the lesion a result of that. I would advise you to start with oral antifungals alongside topical. Maintain feet hygiene. If your nails appear broken then it can be a sign of iron deficiency as well. Follow up with your doctor if the lesion grows or if additional signs like fever develops.