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

Diagnostic Tests for Loose stool

Diagnostic Test list for Loose stool:

The list of diagnostic tests mentioned in various sources as used in the diagnosis of Loose stool includes:

  • Physical examination
    • Abdominal examination for tenderness and a mass - e.g. a mass in the right lower abdomen may suggest bowel cancer or diverticulitis; a mass on right, left or upper abdomen may also suggest bowel cancer; tenderness in the left lower abdomen, with or without a significant mass may suggest ulcerative colitis, diverticulitis or irritable bowel syndrome.
    • Xamine rectum for hemorrhoids and anal fissure that may be causing a positive occult blood test
    • Examine for signs of systemic diseases that may cause loose stools - e.g. tremor and increased heart rate of hyperthyroidism; considerable flushing of carcinoid syndrome; hyperpigmentation of the skin in Addison's disease; and dermatitis and dementia of pellagra.
  • Blood tests
    • Full blood count and ESR, Electrolytes and thyroid function tests if systemic disease is suspected to be the cause of diarrhea
    • Salmonella antibodies (not useful in acute situation)
    • Amoeba antibodies (not useful in acute situation)
    • HIV test, if suspected on history
    • Gastrin level, if suspect a gastrinoma (Zollinger-Ellison syndrome)
  • Stool tests
    • Test for occult blood (if positive may suggest infectious disease of the large intestine or small intestine, ulcerative colitis, bowel cancer, diverticulitis, Zollinger-Ellison syndrome)
    • Stool microscopy for ova, parasites and culture for bacteria
    • Giardia antigen
    • Clostridium difficile toxin B, if history of antibiotic use
    • 24 hour Stool analysis of fecal fat - if steatorrhea is present (i.e. fatty, pale colored, extremely smelly stools that float in the toilet and are difficult to flush away due to excess fat in the stool).
  • Urine tests
    • Urine collection for microscopy and culture, if person with loose stools is a child. Children with Urinary tract infections may have loose stools
    • 5-HIAA, if suspect Carcinoid syndrome
  • Radiological investigations
    • Barium enema
    • Sigmoidoscopy and/or colonoscopy with or without a small bowel aspiration and biopsy - if loose stools persist or if blood is present ( may be required to detect bowel cancer, bowel polyps, celiac disease, Giardia infection.

Home Diagnostic Testing

These home medical tests may be relevant to Loose stool causes:

Conditions listing medical symptoms: Loose stool:

The following list of conditions have 'Loose 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 Loose stool or choose View All.

View All A B C D E F G H I K L M N O P R S T U V W Y Z

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