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what causes toes to turn black

A 55-year-old member asked:
Dr. Matthew Wilkin
23 years experience Podiatry
Possibly: Tight shoes could cause the toe to turn black. It could be a hematoma from some type of injury. However, a toe turning black is typically not normal ... Read More

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A 47-year-old member asked:
Dr. Brent Rubin
40 years experience Podiatry
Discoloration: The only thing that coming to mind initially is if some type of dietary problem. That being said, the feet can be discolored from varicose veins. Th ... Read More
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A 65-year-old female asked:
Dr. Michael Fisher
31 years experience Dermatology
Onychomadesis: Onychomadesis is defined as spontaneous separation of the nail plate from the nail bed, beginning at its proximal end and resulting in the shedding of ... Read More
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A member asked:
Dr. Peter Lio
Dr. Peter Lio answered
19 years experience Dermatology
Nails or toes?: If you mean the toes themselves, this is a little worrisome. Usually the skin will turn black if there is tissue death--necrosis--of the skin. This ... Read More
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A 53-year-old member asked:
Dr. Arnold Malerman
52 years experience Orthodontics
Many causes: Cavities, leaking silver fillings, food stain (coffee, tea, colas, dark berries, etc), medications, trauma to nerve of tooth, and many other reasons. ... Read More
A 49-year-old member asked:
Dr. Jeffrey Kass
27 years experience Podiatry
Fungus: Is a possibility as is bacterial colononization. Sometimes trauma causes keratin buildup and this can be yellow as well. Sometimes, toenail polish can ... Read More
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A 42-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
^ transit time.: Rapid transit time through the GI track.
A 63-year-old female asked:
Dr. Glenn Aufseeser
8 years experience Podiatry
Many things: Many things can cause discoloration of a toe nail. It could be blood resulting from a history of trauma or a fungal infection. I would advise seeing ... Read More
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A 39-year-old member asked:
Dr. Giovanni Marciano
30 years experience Family Medicine
Black legs: Poor circulation.
A 49-year-old member asked:
Dr. David Hettinger
35 years experience Podiatry
It could be...: A lot of different things, but circulation disorders will cause this. See your pcp or a vascular specialist for more detailed evaluation and treatmen ... Read More
A 56-year-old member asked:
Dr. Michael Sparacino
36 years experience Family Medicine
Several things: This problem mandates a real-time (face-to-face) meeting with a doctor. A history has to be taken along with a examination as well as labs and other ... Read More
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A 52-year-old member asked:
Dr. Jeffrey Kass
27 years experience Podiatry
Venous : Insufficiency could do this. The hemosiderin leaks out from the blood and stains the skin.
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A female asked:
Dr. John Goldman
54 years experience Rheumatology
Circulation: Underneath your toenails are bllodvvessels. Red blood cells when oxygen is removed from them turn purple and therefore you get purple discoloration in ... Read More
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A 47-year-old member asked:
Dr. Fred Birnbaum
42 years experience Podiatry
Several reasons: Other than trauma, the first thing that comes to mind is venous insufficiency, where the valves of the deep leg veins become incompetent, causing the ... Read More
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A 48-year-old member asked:
Dr. Jeffrey Bowman
37 years experience Podiatry
Not sure: Black colored feet is not good and would suggest you get to er asap. Possible gang green.
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A 65-year-old female asked:
Dr. Jeffrey Kass
27 years experience Podiatry
A contusion: Vascular compromise. I would check to make sure the temperature of the toe is not colder than the other toes. In the event it is you need immediate at ... Read More
A 60-year-old male asked:
Dr. Martin Tamler
32 years experience Physical Medicine and Rehabilitation
Purple nails: Likely from poor circulation. Could be a condition called raynaud's phenomenon which affects as many as 8% of the population.
A 52-year-old member asked:
Dr. Michelle Achor
15 years experience Podiatry
Raynaud's: Raynaud's disease can cause this. It is a temporary vasoconstriction of the small arteries in the fingers and toes triggered by cold.
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A 45-year-old female asked:
Dr. Robert Jackson
42 years experience Dermatology
See derm: See dermatologist because this can be caused by many diseases.
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A 44-year-old member asked:
Dr. Arnold Beresh
40 years experience Podiatry
Trauma: Usually trauma or injury will cause bleeding under the nail and the appearance of being black & blue.
A 48-year-old member asked:
Dr. Holly Barth
8 years experience General Practice
Variety: Certain medications can cause your urine to turn orange (laxatives, phenazopyridine), as can certain foods (b complex vitamins and carotene containing ... Read More
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A 44-year-old member asked:
Dr. Andrew Schneider
23 years experience Preventive Medicine
May be a fungus : The darkening toenail could be a sign of a fungus infection. It also may be an injury that caused bleeding beneath the nail. Both are treatable! visit ... Read More
A 37-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Melena?: Medications with bismuth like pepto bismal. Black, tarry, malodorous stool can be due to GI bleeding and should be promptly evaluated.

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