U.S. doctors online nowAsk doctors free
A 20-year-old member asked:

what color is your blood ?

6 doctor answers12 doctors weighed in
Dr. Samyukta Mullangi
Dr. Samyukta Mullangianswered
Dermatology 7 years experience
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.
Dr. Robert Kwok
Pediatrics 33 years experience
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. Stephen Camacho
Family Medicine 24 years experience
Blood: The color of blood varies in shades of red. It is the iron in blood that gives it it's red color.
Dr. Bac Nguyen
Family Medicine 23 years experience
Mostly red: Freshly drawn out of body, blood is just red..Bright red. The red cells are made from substance heme and appear red. The white blood cells actually appear a bit white but there are few white cells in comparison so not visible unless the blood is spun down. When spun down, the rest of the fluid is called plasma and it is relatively clear. Google up some images. Have fun learning. Good luck.
Dr. Donald Alves
Emergency Medicine 24 years experience
Red: Human blood is always a shade of red. Oxygenation makes it bright, and loss of oxygen looks darker red/brown. For more information, see: http://chemistry.about.com/od/biochemistry/a/Is-Deoxygenated-Human-Blood-Blue.htm
Dr. Donald Alves
Emergency Medicine 24 years experience
Red: Human blood is always a shade of red. Oxygenation makes it bright, and loss of oxygen looks darker red/brown. For more information, see: http://chemistry.about.com/od/biochemistry/a/Is-Deoxygenated-Human-Blood-Blue.htm

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership

Similar questions

Atlanta, GA
A 29-year-old male asked:

What gives blood its red color?

2 doctor answers2 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Hemoglobin: Hemoglobin is the molecule than contains iron and carries oxygen from the lungs to all parts of the body. Hemoglobin is red, and fills up the red blood cells, thus making the cells look red.
WA
A 35-year-old male asked:

What cells give human blood its red color?

3 doctor answers5 doctors weighed in
Dr. Alvin Lin
Geriatrics 30 years experience
Iron & Hemoglobin: Hemoglobin is the protein that contains 4 atoms of iron which can bind 4 atoms of oxygen. When this happens, the hemoglobin changes shape such that its absorption of light is different and appears more red. However, even if you're anemic, regardless of iron status, your blood will still appear red due to the minimal amount of iron, although you may physically appear more pale due to less blood.
Canton, GA
A 22-year-old male asked:

The color of your blood is red correct?

1 doctor answer1 doctor weighed in
Dr. Hashmat Rajput
Internal Medicine 39 years experience
Yes: The color of human blood is red due to red blood cells which contain hemoglobin.
A 39-year-old member asked:

Please explain substance gives blood its dark red color?

1 doctor answer2 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Hemoglobin: Hemoglobin is a complex chemical which carries oxygen around to the tissues. When it combines with oxygen it gets bright red which is the usual color we associate with blood, when the oxygen is taken away it gets to be a darker color.
A 48-year-old member asked:

What is the true color of blood?

3 doctor answers8 doctors weighed in
Dr. Heidi Fowler
Psychiatry 25 years experience
Blood: Blood is red. It is darker red when it carries less oxygen (like in veins). It can appear blue when covered by skin.
Dr. Jeffrey Juchau
Family Medicine 33 years experience
It does not look like the stuff on most TV shows
Dec 6, 2014

Related questions

A 33-year-old member asked:
2 doctor answers4 doctors weighed in
A 50-year-old male asked:
1 doctor answer2 doctors weighed in
A 34-year-old male asked:
1 doctor answer2 doctors weighed in
A 32-year-old member asked:
1 doctor answer1 doctor weighed in
A 40-year-old member asked:
1 doctor answer6 doctors weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
$30 per visit with
membership
Last updated Oct 4, 2016

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.