Septicemia occurs when a bacterial infection enters the bloodstream. Septicemia - Also known as bacteremia or blood poisoning.Raynaud's disease - The fingers and toes blanch, then turn blue and may become numb or painful on exposure to cold.Hepatolenticular degeneration (Wilson's disease).Argyria - A condition caused by exposure to chemical compounds of the element silver.Common disorders like thyroid disease can also cause abnormalities in the toenail and fingernail beds, often producing dry brittle nails that crack and split easily.īlue fingernails, also known as azure lunula (medical term - cyanosis), are characterized by a blue discoloration of the lunulae. When healthy fingernails begin to change color or texture, one of the most common underlying causes is nail fungus, which can cause the nails to crack, peel, and change color and texture. Your beauty therapist and manicurist should also be able to guide you in this field. Remember that your nails may look a particular way for another reason unrelated to your health but could be due to mechanical or environmental influences. Nail colors can generally be grouped into black, blue, brown/copper, green, blue-green, grey, yellow, pale, purple or red groups - each color means something different. In most instances, patients will manifest other signs or symptoms of disease before nail changes become evident. Fingernail color and condition changes are rarely the first clues of serious illness. Healthy fingernails and toenails should generally be pink - with the healthy nail plate being pink and the nail being white as it grows off the nail bed. Health-care and pre-hospital-care providers (EMTs or paramedics) often use the fingernail beds (CRT or blanch test) as a cursory indicator of distal tissue perfusion of individuals who may be dehydrated or in shock.
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