Have a symptom?
See what questions
a doctor would ask.

Black stool

Black stool: Introduction

Black stool: Darkening or blackness of stool. See detailed information below for a list of 47 causes of Black stool, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes.

» Review Causes of Black stool: Causes | Symptom Checker » | Assessment Questionnaire »

Causes of Black stool:

The following medical conditions are some of the possible causes of Black stool. There are likely to be other possible causes, so ask your doctor about your symptoms.

» Review Causes of Black stool: Causes | Symptom Checker » | Assessment Questionnaire »

Home Diagnostic Testing and Black stool

Home medical tests possibly related to Black stool:

Causes of Types of Black stool:

Review the causes of these more specific types of Black stool:

Black stool: Symptom Checker

Listed below are some combinations of symptoms associated with Black stool, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.

Symptom Checker

Symptom Checker

Black stool Treatments

Review further information on Black stool Treatments.

Stories from Users for Black stool

Real-life user stories relating to Black stool:

Message Boards for Black stool

Symptom specific forums: The following patient stories in our interactive forums and message boards relate to Black stool or relevant symptoms:

Diagnostic tests for Black stool:

Various tests are used in the diagnosis of Black stool. Some of these are listed below :

  • Physical examination
    • Look for signs of shock e.g. elevated heart rate, low blood pressure
    • Abdominal examination for tenderness , masses, enlarged liver or spleen
    • Examine for other evidence of chronic liver disease e.g. jaundice, bruising, enlarged breasts in males, scratch marks, swollen abdomen
    • Digital rectal examination inspecting the color of the stool and for blood
  • Blood tests
  • more tests...»

Black stool: Animations

Medications or substances causing Black stool:

The following drugs, medications, substances or toxins are some of the possible causes of Black stool as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

Black stool: Comorbid Symptoms

Some of the comorbid or associated medical symptoms for Black stool may include these symptoms:

Causes of General Symptom Types

Research the causes of these more general types of symptom:

Research the causes of related medical symptoms such as:

Causes of Similar Symptoms to Black stool

Research the causes of these symptoms that are similar to, or related to, the symptom Black stool:

Assessment Questionnaire: Questions your doctor may ask (and why!)

During a consultation, your doctor will use various techniques to assess the symptom: Black stool. These will include a physical examination and possibly diagnostic tests. (Note: A physical exam is always done, diagnostic tests may or may not be performed depending on the suspected condition) Your doctor will ask several questions when assessing your condition. It is important to openly share any pertinent information to help your doctor make an accurate diagnosis.

It is also very important to bring an up-to-date list of all of your all medical conditions, medications including dosages, and names of numbers of any specialist you see.

Create your printable checklist here.

See Black stool Assessment Questionnaire (10 listings)

Black stool: Deaths

Read more about causes and Black stool deaths.

Misdiagnosis and Black stool

Chronic digestive conditions often misdiagnosed: When diagnosing chronic symptoms of the digestive tract, there are a variety of conditions that may be misdiagnosed. The best known, irritable bowel syndrome, is over-diagnosed, more »

Intestinal bacteria disorder may be hidden cause: One of the lesser known causes of diarrhea is an imbalance of bacterial in the gut, sometimes called intestinal imbalance. The digestive system contains a variety of "good" more »

Antibiotics often causes diarrhea: The use of antibiotics are very likely to cause some level of diarrhea in patients. The reason is that antibiotics kill off not only "bad" bacteria, but can also kill the "good" more »

Food poisoning may actually be an infectious disease: Many people who come down with "stomach symptoms" like diarrhea assume that it's "something I ate" (i.e. food poisoning). In fact, it's more likely to be an infectious more »

Mesenteric adenitis misdiagnosed as appendicitis in children: Because appendicitis is one of the more feared conditions for a child with abdominal pain, more »

Celiac disease often fails to be diagnosed cause of chronic digestive symptoms: One of the most common chronic digestive conditions is celiac disease, a malabsorption disorder with a variety more »

Chronic digestive diseases hard to diagnose: There is an inherent difficulty in diagnosing the various types of chronic digestive diseases. Some more »

Black stool: Research Related Doctors & Specialists

Other ways to find a doctor, or use doctor, physician and specialist online research services:

Hospitals & Clinics: Black stool

Research extensive quality ratings and patient safety measures for hospitals, clinics and medical facilities in health specialties related to Black stool:

Black stool: Related Rare Diseases

Rare types of medical conditions and diseases in related medical categories:

Black stool: Undiagnosed Conditions

Conditions that are commonly undiagnosed in related areas may include:

Organs affected by Black stool:

The list of organs typically affected by Black stool may include, but is not limited to:

Detailed list of causes of Black stool

The list below shows some of the causes of Black stool mentioned in various sources:

How Common are these Causes of Black stool?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Black stool. Of the 47 causes of Black stool that we have listed, we have the following prevalence/incidence information:

  • 0 causes are "very common" diseases
  • 3 causes are "common" diseases
  • 1 causes are "uncommon" diseases
  • 0 causes are "rare" diseases
  • 3 causes are "very rare" diseases
  • 43 causes have no prevalence information.

Conditions listing medical symptoms: Black stool:

The following list of conditions have 'Black stool' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Black stool or choose View All.

View All A B C D E G H I J K L P R S T V













Join in at the forums

Ask or answer a question about symptoms or diseases at one of our free interactive user forums.

Medical story forums: If you have a medical story then we want to hear it.

See a list of all the medical forums

Causes of Black stool Based on Risk Factors

This information shows analysis of the list of causes of Black stool based on whether certain risk factors apply to the patient:

  • Travel - has the patient travelled recently?

    Doctors and specialists: Who should I consult about Black stool?

    Depending on the seriousness of the onset of Black stool, you may want to consult one of the following medical professionals.

    Important:In extreme cases, always seek advice from emergency services :

    Classifications of Black stool:

    Subtypes of Black stool:

    Dark stool (50 causes), Black tarry stools (2 causes), Green stool (10 causes), Stools, clay-colored (8 causes)

    Medical Conditions associated with Black stool:

    Stool color (387 causes), Dark stool (50 causes), Stool symptoms (2508 causes), Bowel problems (2509 causes), Intestinal symptoms (5299 causes), Lower abdominal symptoms (3048 causes), Abdominal symptoms (5930 causes), Digestive system symptoms (5299 causes), Bowel movements (2383 causes)

    Symptoms related to Black stool:

    Diarrhea (2312 causes), Blood in stool (406 causes), Stool symptoms (2508 causes), Stool color changes (387 causes), Green stool (10 causes), Blue stool, Malena, Leptospirosis (5 causes), Acinic cell carcinoma, Adenocarcinoid tumor, Chemical poisoning, Cirrhosis of the liver, Colorectal cancer, Diverticular Disease, Duodenal ulcer due to antral G-cell hyperfunction, Esophageal varices

    Medical articles on signs and symptoms:

    Doctor-patient articles related to symptoms and diagnosis:

    These general medical articles may be of interest:

    Evidence Based Medicine Research for Black stool

    Medical research papers related to Black stool include:

    Research More Evidence-Based Medicine at

    More Ways To Research Medical Signs and Symptoms:


    By using this site you agree to our Terms of Use. Information provided on this site is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information on this site is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs. Please see our Terms of Use.

    Home | Symptoms | Diseases | Diagnosis | Videos | Tools | Forum | About Us | Terms of Use | Privacy Policy | Site Map | Advertise