11/4/2022 0 Comments Slight blue tinge to lipsLet's examine these now: What conditions can cause blue fingernails?īlue fingernails may be caused by an underling health condition that results in blue fingernails as a symptom, and in some cases, the blue skin discolouration becomes a chronic condition. If the fingernails remain blue even when you warm up then an underlying condition may be interfering with the body’s ability to carry oxygenated red blood cells to the various organs and tissues. When fingernails turn blue from the cold, this is a normal physiological reaction as the body begins to shift blood flow from the limbs, hand and feet, to the chest and abdomen so that internal body temperatures are maintained and the organs can remain a healthy temperature. If normal nail colour returns once the hands are warmed or massaged, then the bluish appearance is likely to be due to the cold temperatures. Therefore, if you are cold, this can temporarily slow the flow of blood through the skin. This creates narrow pathways which make it hard for an adequate amount of blood that is oxygen-rich to reach the skin beneath the nails. When nails appear blue from cold temperatures it is due to the cold restricting your blood vessels and forcing them to narrow. It is possible for cold temperatures to make the fingernails appear blue, bear in mind it is the skin underneath the nails, the nail bed, that turns blue and not the actual nail itself. There are a number of factors and underlying health conditions that can cause fingernails to turn blue. Simply put, haemoglobin is tasked with the job of transporting oxygen in the blood. Haemoglobin is a protein molecule found in the red blood cells that contains oxygen which it carries from the lungs to the various tissues in the body, it then returns with the carbon dioxide it collected from these tissues back to the lungs. This skin discolouration may also suggest that there is a high amount of an unusual form of haemoglobin found in the blood that is circulating in your body. This low level of oxygen in the blood results in the skin or the membrane beneath the skin turning a bluish colour (or sometimes even purple). Medically speaking, blue fingernails are caused by hypoxaemia, an abnormally low level of oxygen in the blood. **My Med Memo - Cyanosis occurs as a result of poor circulation or an inadequate amount of oxygen present in the blood. The correct medical term for a bluish colour or hue of the skin, including the skin that is underneath the fingernails, is cyanosis. Blue fingernails are a symptom of this condition.
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