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A 37-year-old member asked:

blood in stool but suddenly turned red to dark blackish?

3 doctor answers8 doctors weighed in
Dr. Keith Stockerl-Goldstein
Hematology and Oncology 30 years experience
See a doctor: This needs to be evaluated by a physician to determine the cause of the blood loss.
Dr. Eric Kaplan
Colon and Rectal Surgery 42 years experience
Blood bad in stool: Any amount of bleeding in stool, be it bright red, maroon or black demands prompt and thorough evaluation. Many of the causes will not just go away by themselves and may be life threatening and or life shortening. Go for immediate evaluation.
Dr. TRUC DAO
Dr. TRUC DAO commented
Psychiatry 37 years experience
black stool results from bleeding from stomach or higher intestin then blood is broken down by digestive enzyme to become black and very foul smell. You are hemorrhaging adn can die if left untreated. ER treatment immediate to stop bleeding
Aug 30, 2012
Dr. Diane Minich
Family Medicine 37 years experience
See your doctor asap: as blood in the stool is never normal Black blood usually means it is coming from the stomach and has changed color due stomach acid and enzymes affecting the blood. If a lot of blood or black or you are dizzy or weak go to ER.

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Similar questions

A 32-year-old member asked:

Could supplements and vitamins be causing me to have green watery stools in my second trimester?

2 doctor answers4 doctors weighed in
Dr. Jeffrey Gladd
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No: While anything is possible, it is unlikely. It could be a virus. I would suggest starting a probiotic (good bacteria). This should help balance the digestive system out, but also there is a study that showed that women who took a probiotic during the second half of pregnancy had children with less risk of allergy concerns.
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Is it true that pregnant women are not allowed to be blood donors?

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Yes: We do not consider it safe for a pregnant woman to donate blood. Blood volume increases dramatically over the course of pregnancy in order to support proper fetal circulation. The loss of blood from the system would likely be tolerated, but the system is not designed for that. Given the potential risks and the lack of anything to be gained, blood donation is not allowed during pregnancy.
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Will our high blood pressure be passed down to the child?

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A 43-year-old member asked:

Is it bad that during a nose bleed when I tilt my head back it feels like I am swallowing blood?

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Harrisburg, PA
A 83-year-old male asked:

Hemoglobin hematocrit and red blood cell low counts and glucose and nitrogen high what is cause

2 doctor answers2 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Numbers are numbers: Lab results are numbers, and numbers are just numbers. They have little meaning without looking at the whole person. Low hemoglobin, hematocrit, and red blood cell counts means blood cells are not being made fast enough, are being lost (through bleeding), are being broken up, or any combination of such problems. Glucose goes up from increased body stress, inadequate insulin, I.V. Glucose, etc....

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Last updated Aug 4, 2020
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