• Español
  • Join Now
Make an appointment:
Specialty
(i.e. Dermatologists)
Location

What does black blood mean?

I have an ugly mole on my arm that I sometimes pick at (I know it's a bad habit, can't help it) and recently when I scraped it raw, it bled. The freaky thing was that the blood was almost black. What does this mean? Is blcak blood a sign of some kind of infecetion or blood poisoning?
I do agree that you should not pick and your mole. I think that if you feel it is an annoying thing, that you have it removed by a qualified physician such as a dermatologist. The color of blood is related to the amount of oxygen bound to the red blood cells. The more oxygen in the blood, the brighter red it appears. As oxygenation of the blood gets lower the blood gets darker and darker. Blood that you normally see after a cut is venous blood which has the lowest oxygen levels in the blood vessels. Occasionally in certain light, or if the oxygen level is very low, the blood can appear almost black. Blood infections are very serious but cause more noticeable symptoms such as fever and loss of consciousness. There are certain blood poisons that can cause blood to become a rust color, but usually not black. I suggest that you schedule an appointment with your primary care physician. He or she can take a look at the mole and decide if it should be removed. You can also discuss your bleeding and see if there is any additional information you should know that is specific to you personal past medical history. Good luck.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under ZocDoc’s Terms of Service.

Nearby Doctors

  • Dr. Sam Warren
    Dr. Sam Warren MD, MS
    Primary Care Doctor
    Avg Rec:
    613 19th Ave East
    Seattle, WA 98112
  • Dr. Warren Dinges
    Dr. Warren Dinges MD, PhD
    Primary Care Doctor
    Avg Rec:
    509 Olive Way
    Seattle, WA 98101
  • Dr. Robert Goode
    Dr. Robert Goode MD
    Primary Care Doctor
    Avg Rec:
    8015 South East 28th Street
    Mercer Island, WA 98040

Other Doctors

  • Dr. Shamim Shakibai
    Dr. Shamim Shakibai MD
    Primary Care Doctor
    Avg Rec:
    8733 Beverly Blvd
    West Hollywood, CA 90048
  • Dr. Ramin Samadi
    Dr. Ramin Samadi MD
    Primary Care Doctor
    Avg Rec:
    5900 Overton Ridge Blvd
    Fort Worth, TX 76132
  • Dr. Julie Norley
    Dr. Julie Norley DO
    Primary Care Doctor
    Avg Rec:
    7534 E 2nd Street
    Scottsdale, AZ 85251