A 33-year-old member asked:
Why is my blood dark?
2 doctor answers • 3 doctors weighed in

Dr. Michio Abeanswered
Internal Medicine 28 years experience
Myoglobinuria: Very, dark urine with the color of cola could be due to the presence of myoglobin, which is a breakdown product of muscle cell. It can be caused by trauma, alcohol, medications, and vigorous exercises. It could indicate that you have rhabdomyolysis, which could lead to kidney failure. Another cause would be blood (as in uti) or bilirubin in the urine (as in liver disease). Should be checked.
Created for people with ongoing healthcare needs but benefits everyone.
6.1k viewsReviewed >2 years ago

Dr. Gurmukh Singhanswered
Pathology 51 years experience
See below: What makes you think that your blood is dark? Venous blood normally has darker color than arterial blood.
Created for people with ongoing healthcare needs but benefits everyone.
246 viewsAnswered >2 years ago
Similar questions
A 30-year-old member asked:
How come my blood is so dark?
1 doctor answer • 1 doctor weighed in

Dr. Donald Alvesanswered
Emergency Medicine 25 years experience
Several options: Can indicate significant oxygen extraction by the body, some nutritional variances (like high iron), dehydration (/concentration), and more often than not--if otherwise healthy--is just a normal variant that is ok for you. If worried, ask your dr.
Created for people with ongoing healthcare needs but benefits everyone.
4.7k viewsAnswered >2 years ago
Last updated Mar 25, 2022
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