Why are fingernails purple when it's cold in winter now?

hello, according to your description, fingernails change color when they are cold, which is a problem of peripheral circulation. Generally, when the weather is cold, blood vessels contract and the peripheral blood supply is insufficient, it is cyanosis.

Suggestions:

The general people will do the same. If you appear frequently, you can take niacin orally, or Salvia miltiorrhiza can improve the peripheral circulation. It is recommended to exercise more at ordinary times. I wish you health!

one. The tips of human limbs, that is, toes and tips of hands, are far away from the heart, and their blood supply ability is weak. In winter, after the heat of the tips of hands is lost, the blood can't supply the heat quickly, so the temperature of the tips of hands will be low, the capillaries will contract, the blood flow will be blocked, venous blood can't flow back immediately, arterial blood can't be supplied immediately, and the nails will turn purple. In severe cases, they will be frostbitten. < P > 2. Pay attention to check whether hemoglobin is abnormal.

three. Congestion performance, the temperature rise accelerates blood circulation and naturally returns to the original color.

four. Abnormal cardiopulmonary function.