
Stool Culture and Sensitivity (Aerobic)









The Stool Culture and Sensitivity (Aerobic) test helps detect the presence and type of bacteria causing the infections in the gastrointestinal (digestive) tract. This test distinguishes between the types of bacteria that cause disease (pathogenic) and the types that are normally found in the gastrointestinal tract (normal flora). Additionally, it helps determine which antibiotics are effective against the identified bacteria.












Understanding Stool Culture and Sensitivity (Aerobic)
The Stool Culture and Sensitivity (Aerobic) test helps to detect bacterial infections (specifically targeting aerobic bacteria (that need oxygen to grow)) in the gastrointestinal tract. Normally, certain bacteria (normal flora) inhabit everyone’s gastrointestinal tract. They play an important role in the digestion of food and their presence keeps a check on the growth of disease-causing bacteria (pathogenic). Sensitivity testing is done to identify which antibiotics are most effective against these pathogenic bacteria.
The most common symptoms of a pathogenic bacterial infection are prolonged diarrhea, bloody diarrhea, mucus in the stool, abdominal pain and cramping, and nausea. This test helps determine the cause of digestive conditions such as bacterial gastroenteritis, diarrhea, dysentery, food poisoning, etc.
By accurately identifying the bacterial pathogen and their antibiotic susceptibilities, the Stool Culture and Sensitivity (Aerobic) test plays an important role in managing and treating bacterial infections in the gastrointestinal system.
For this test, collect a fresh stool sample in a clean, sterile, leak-proof screw-capped container, preferably one with a spoon. Only a small portion of about 5–10 grams (1–2 teaspoons) is needed, so avoid overfilling the container. Do not use matchboxes, paper, or other absorbent materials for collection. Also, ensure the sample is not contaminated with urine or water. Inform your doctor about all the medications or supplements that you are taking, as certain medications or compounds will render the stool specimens unsatisfactory for examination. The specimens should be collected before these substances are administered, or collection must be delayed until after the effects have passed.
Lab test results may vary across laboratories. Do not self-medicate at home solely based on these test results and always consult your doctor for proper understanding of the test results. The insights from the Stool Culture and Sensitivity (Aerobic) test will help doctors prescribe targeted treatments ensuring effective and appropriate medical care.
What does Stool Culture and Sensitivity (Aerobic) measure?
The Stool Culture and Sensitivity (Aerobic) test measures the presence and type of aerobic bacteria in the digestive tract, specifically those causing infections and illnesses. If bacteria are found in the culture, sensitivity testing is done to determine which antibiotics are effective against the identified bacteria. This information helps doctors diagnose bacterial infection accurately and select the most appropriate and effective antibiotic treatment, ensuring better management of the infection and treatment response.





FAQs related to Stool Culture and Sensitivity (Aerobic)
- Stool Culture [Internet]. Rochester, NY: University of Rochester Medical Center; [Accessed 05 Jun. 2024]. Available from:
- Lee JY, Cho SY, Hwang HSH, Ryu JY, Lee J, Song ID, Kim BJ, Kim JW, Chang SK, Choi CH. Diagnostic yield of stool culture and predictive factors for positive culture in patients with diarrheal illness. Medicine (Baltimore). 2017 Jul;96(30):e7641. [Accessed 05 Jun. 2024]. Available from:
- Giuliano C, Patel CR, Kale-Pradhan PB. A Guide to Bacterial Culture Identification And Results Interpretation. P T. 2019 Apr;44(4):192-200. PMID: 30930604; PMCID: PMC6428495. [Accessed 05 Jun. 2024]. Available from:
- Erlandson KM, Liu J, Johnson R, Dillon S, Jankowski CM, Kroehl M, Robertson CE, Frank DN, Tuncil Y, Higgins J, Hamaker B, Wilson CC. An exercise intervention alters stool microbiota and metabolites among older, sedentary adults. Ther Adv Infect Dis. 2021 Jun 25;8:20499361211027067. [Accessed 05 Jun. 2024]. Available from:
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