Nails that are purple in color can first be treated by the principle of removing blood stasis and activating blood circulation. When the end of the nail is subjected to external force, it will lead to blood stasis, and thus a part of the nail will turn purple in color, and there will be a painful sensation when it is pressed because of blood stasis and the nails will turn purple just the same. No matter which one, internal and external medications that activate blood circulation and remove blood stasis can improve the condition. Attention to cold and warmth, purple nails can also be caused by the cold weather, especially those who are exposed to cold water is more obvious, as long as the cold and warmth do a good job, may also be able to reduce the symptoms of purple nail color. Hand labor is too much people will also appear nails turn purple, gravity labor may compress blood vessels, which leads to the end of the nails in the blood of the reduction of hemoglobin too much, resulting in the phenomenon of purple fingers, in this case, in the labor force is too light, that is, to be relieved and improved.