Blood in Stool (Hematochezia, Melena): Medical History

Medical history represents an important component in the diagnosis of melena (tarry stools) or hematochezia (appearance of fresh blood in the stool).

Family history

  • What is the general health status of your relatives?
  • Are there any diseases in your family that are common?
  • Are there any hereditary diseases in your family?

Social history

  • What is your profession?
  • Are you exposed to harmful working substances in your profession?

Current medical history/systemic medical history (somatic and psychological complaints).

  • When did you notice the bleeding?
  • Does the bleeding exist continuously?
  • What does the bleeding look like?
    • Dark blood?*
    • Light blood?*
    • Blood mixed with the stool?*
    • Blood accumulation on the stool?
  • Do you have a rapid pulse?*
  • Questions about bowel movements
    • How regularly do you have bowel movements?
    • What does the bowel movement look like? Shape, color, odor, admixtures?
    • Is the stool hard?
    • Do you have diarrhea?
  • Do you have nausea or vomiting?
  • Do you feel sluggish?
  • Have you noticed any other symptoms? Pain?
  • Where is the pain localized?

Vegetative anamnesis including nutritional anamnesis.

  • Have you lost body weight unintentionally in the recent past? If so, how much in what period of time?
  • Do you smoke? If yes, how many cigarettes, cigars or pipes per day?
  • Do you drink alcohol more often? If yes, what drink(s) and how many glasses of it per day?
  • Do you use drugs? If yes, which drugs and how often per day or per week?
  • Have you consumed beet?

Self history including medication history.

  • Pre-existing conditions (gastrointestinal diseases).
  • Surgery (operations on the gastrointestinal tract: e.g. polyectomy/polyp removal).
  • Radiotherapy
  • Vaccination status
  • Allergies
  • Environmental history

Medication history

  • Anticoagulants – medications that inhibit blood clotting.
  • Nonsteroidal anti-inflammatory drugs (NSAIDs) result in a three- to fivefold increase in the risk of upper gastrointestinal tract complications (upper GI bleeding, perforation/breakthrough, ulcer/ulcer); complications are dose-dependent
  • Iron supplements
  • Coal preparations
  • Bismuth preparations
  • See also drug side effects, under:
    • “Bleeding due to medications”
    • “Platelet dysfunction due to drugs”

* If this question has been answered with “Yes”, an immediate visit to the doctor is required! (Data without guarantee)