What deficiency causes black toenails?
Zinc deficiency, which may be due to a lack of zinc in the diet or an underlying medical condition, can cause nail dystrophy. Nail dystrophy is the discoloration and distortion of a person’s nails.
Should I be worried if my toenail is black?
Black toenails can be caused by underlying medical conditions. Apparently unrelated conditions, such as diabetes, heart disease, kidney disease, and anemia, can also cause discolored toenails. So don’t ignore any discolored toenail that doesn’t disappear on its own, and relatively promptly.
Can diabetes cause black toenails?
What causes black toenail? A black toenail may be caused by: An underlying medical condition: This may include anemia, diabetes, heart disease, or kidney disease.
What do dark toenails indicate?
Black Toenail: Common Causes If your toenail turns black, it’s most likely a bruise under the nail, technically called a subungual hematoma. You can get it from stubbing a toe or from footwear that cram your feet into the front of the shoe.
Can toenail fungus look black?
Nail fungus can cause the nail to become thick or ragged and appear yellow, green, brown or black. An infected nail may separate from the nail bed. Nail fungus is a common condition that begins as a white or yellow spot under the tip of your fingernail or toenail.
Why do diabetics toes go black?
Gangrene. Diabetes affects the blood vessels that supply your fingers and toes. When blood flow is cut off, tissue can die. Treatment is usually oxygen therapy or surgery to remove the affected area.
Does black toenail go away?
If a black toenail is caused by an injury, the resulting spot from broken blood vessels will disappear once your nail grows out. Black toenail caused by trauma from an injury usually resolves on its own without treatment.
Is black toenail a fungus?
What causes black toenail? A black toenail may be caused by: An underlying medical condition: This may include anemia, diabetes, heart disease, or kidney disease. Fungal infections: While these often look white or yellow, fungal infections can sometimes cause black toenails from debris buildup.
What does black toes indicate?
A black toenail may be caused by: An underlying medical condition: This may include anemia, diabetes, heart disease, or kidney disease. Fungal infections: While these often look white or yellow, fungal infections can sometimes cause black toenails from debris buildup.
Can darkened toes be a symptom of COVID-19?
In skin of color, COVID toes can cause a purplish discoloration, as the toe circled in red shows. You may also see swelling and round brownish purple spots (B). What you may see with COVID toes: The condition may develop on your toes, fingers, or both.
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