blue fingernail beds

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My nail bed is flaking away from my fingernails?

If you have...

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artificial nails, remove them. A common cause is damage from the adhesive applied to hold the acrylics. Then, keep your nails away from soap & water and harsh chemicals as much as possible (wear gloves). Take biotin (one of the B vitamins) 5000 units per day. Use nail polish, either one color coat or 2 clear coats. Be patient, it may take several weeks to bring your nails back to normal.
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Why do my fingernails turn blue after drinking water?

Is it cold

Fingernails
You probably have raynaud's. The hands change color when exposed to temperature change.
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What can cause fingernails and toenails to turn blue?

Possibilities

Fingernails
This could be from trauma (like bruising), vascular compromise (diminished blood flow), damaged nerves, or more specific conditions like Raynaud's (usually associated with autoimmune diseases). Talk to your primary care physician first and a referral will most likely follow based on his/her findings.
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What would cause blue fingernails and hands in a baby?

Peripheral anoxia

Fingernails
Peripheral anoxia.
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Do people with Raynaud's always have blue fingernails?

No

Fingernails
Only with nail polish! The fingers and nails may go through the red, white and blue cycle. Sometimes we miss it!
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Dr. Dan E. Fisher answered:

Can flu-like symptoms suddenly cause your fingernails to turn blue?

Not likely

Fingernails
Nails or skin under nails? I can not think of a way to change color of your nails, but skin under nails typically reflects amount of oxygen being carried by red cells. Bright red means full of oxygen and blue means depleted. Other disorders can also cause discoloration, but if new or associated with shortness of breath will need an explanation soon.
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Dr. Robert Kwok answered:

Is it normal to get blue fingernails when having a Raynaud's attack?

Yes

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The color changes in a Raynaud's attack are "white" when the blood supply is decreased, then "blue" when the oxygen is mostly used up due to decreased blood flow being unable to bring in enough new oxygen, and finally "red" when the vessels relax and there is a reaction with an above-normal amount of blood flowing to the fingers.
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Nail bed still looks red days after fingernail removal. Is this normal?

Nails sterile matrix

Fingernails
or what you see under the nail plate (what you call the hard part of the nail) is very vascular and it bleeds. It normally is reddish in color from that blood supply no matter what shade or pigment one is. If it was taken off for infection, the best way to differentiate infection from normal hyperemia or redness from irritation and bllod flow is to ask the physician who took the nail off.
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Dr. Yash K. Khanna answered:

My daughter has blue-ish fingernails and a low fever (100.1). Is this a concern?

Need more informatio

Fingernails
We can not really answer your question,we need more information as to how old she is,has she had any medical problem since she was born,does she have any other symptoms Bluish nails need to be examined to make sure theseare blue,and if these are blue it can be due to cyanosis or some other causes and needs to be diagnosed.So check with your pediatrician or your family doctor
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Dr. Matt Malkin answered:

My left arm and hand are numb and my fingernails are blue. Could this be something serious?

Depends

Raynauds_phenomenon
This may be Raynaud's Phenomenon, which is a blood vessel spasm. It is classically triggered by cold. Treatments vary from medication to surgery. It may also be related to autoimmune diseases. Best to get evaluated by a physician for a full history and physical. Make note of what seems to trigger this. If it doesn't resolve quickly, you may need an ER visit.
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