7 doctors weighed in:

What color is your blood ?

7 doctors weighed in
Samyukta Mullangi
Dermatology
4 doctors agree

In brief: Variations on red

Arterial blood and capillary blood are bright red, as oxygen imparts a strong red color to the heme group.
Deoxygenated blood is a darker shade of red; this is present in veins, and can be seen during blood donation and when venous blood samples are taken. Blood in carbon monoxide poisoning is bright red, because carbon monoxide causes the formation of carboxyhemoglobin.

In brief: Variations on red

Arterial blood and capillary blood are bright red, as oxygen imparts a strong red color to the heme group.
Deoxygenated blood is a darker shade of red; this is present in veins, and can be seen during blood donation and when venous blood samples are taken. Blood in carbon monoxide poisoning is bright red, because carbon monoxide causes the formation of carboxyhemoglobin.
Samyukta Mullangi
Samyukta Mullangi
Answer assisted by Samyukta Mullangi, Medical Student
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Dr. Robert Kwok
Pediatrics
2 doctors agree

In brief: Red

Human blood is red.
The red color comes from the hemoglobin molecules inside the red blood cells. Hemoglobin molecules are too tiny to be seen even with a microscope, and they do the job of carrying oxygen to all parts of the body.

In brief: Red

Human blood is red.
The red color comes from the hemoglobin molecules inside the red blood cells. Hemoglobin molecules are too tiny to be seen even with a microscope, and they do the job of carrying oxygen to all parts of the body.
Dr. Robert Kwok
Dr. Robert Kwok
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