Why is everyone's blood color different, some deep and some shallow?

Blood is like gold to the human body. Although it only accounts for a small part of your body weight, it plays an important role in material transfer and maintaining the normal operation of your body. When you draw blood in the hospital, you may find that the blood color of the two blood draws will be different. Sometimes they are deep red, but sometimes they are light red. Why is this? Let me tell you why.

First, the color of blood in different parts of the body varies greatly.

The blood circulation of human body is divided into systemic circulation and pulmonary circulation, both of which have two different kinds of blood, namely venous blood and arterial blood. Venous blood generally flows in veins of systemic circulation and pulmonary circulation, while arterial blood generally inputs and outputs in arteries.

Sometimes the doctor draws blood from your vein, which is reddish in color and slow in blood flow, because hemoglobin is reduced and oxygen supply to cells in the body is insufficient. But sometimes doctors need to take your arterial blood for examination, and the color of this blood is dark red, mainly because it has just flowed out of the heart and the content of hemoglobin in the blood is high. So the color of blood in different parts of the body is different.

Second, different diseases may also lead to different blood colors.

Can compare the blood of the same part of normal people. If your blood color is too dark or too light, there may be something wrong with your body.

First of all, blood color is too dark, which is generally an early symptom of hypertension or diabetes. Because hypertension patients have high blood pressure, blood will be concentrated and the color of blood will become darker, while diabetes patients have high sugar and lipid, and these excess blood sugar and lipid will be deposited in the blood, which will also make the color darker.

Then there is the problem that the blood color is too light, which is the performance of anemia. Because the amount of hemoglobin in your blood is not enough, the color of your blood will become lighter, resulting in your blood not being able to carry enough oxygen, and sometimes you will feel short of breath and dizzy.

For whatever reason, normal blood color is the best, because it is the healthiest.