Symptom: Black stool

Black stool: Darkening or blackness of stool
Detailed cause information for symptom: Black stool:

Possible causes of symptom: Black stool (30 conditions)

Medications or substances causing symptom: Black stool (2 listings)

Medical conditions causing symptom: Black stool (10 conditions)

Medical articles on symptoms: These general medical articles may be of interest:

Symptoms of the Silent Killer Diseases
Symptoms and Medical Malpractice
Medical mistakes and their rates, causes and prevention
Deaths and sudden death

Types of Black stool: dark stool (10)
Black stool type of: Stool color (45), Dark stool (10)
Symptoms: symptom center, symptom groups, symptom descriptions

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

Blood in stool - see causes of blood in stool and rectal bleeding for various possible diagnoses.
- Internal bleeding (see Bleeding symptoms)
- Gastrointestinal bleeding
- Rectal bleeding (type of Gastrointestinal bleeding)
- Stomach bleeding (type of Gastrointestinal bleeding)
- Intestinal polyps (type of Polyp)
- Peptic ulcer
- Colon cancer
- Diverticular disease
- Jejunal diverticula
- Esophageal bleeding (type of Gastrointestinal bleeding)
Certain foods
- Iron supplements
- Beets
- Licorice
- Pepto-Bismol
Stomach bleeding (type of Gastrointestinal bleeding) - usually causes darker or black blood in the stool.
- Peptic ulcer
- Gastritis
- Esophageal bleeding (type of Gastrointestinal bleeding)
- Stomach cancer
- Cirrhosis of the liver
- Certain stomach conditions
- See also other causes of black stool, stomach bleeding, or causes of gastrointestinal bleeding

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. This list is incomplete and various other drugs or substances may cause your symptoms. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

Iron supplements
Pepto-Bismol

Conditions listing 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.