Skip to content

Aeromonas Stool Culture Test

Published: August 9, 2026Updated: August 16, 2026

The Aeromonas culture test is a laboratory examination used to diagnose gastrointestinal infections caused by Aeromonas bacteria, which can lead to diarrhea and other digestive symptoms after exposure to contaminated water or food.

Quick summary

{气单胞菌是一种可引起腹泻和胃肠道症状的细菌,检测通过粪便样本进行培养分析,常见感染途径为受污染的水或食物,免疫功能低下者需特别注意预防感染}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
105622-5
Short code
Aeromonas Stl Ql Cult
Synonyms
Aeromonas Stl Ql Cult
Category
chemistry
Sample
stool
Container
Clean container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
organism-specific-culture
Specimen volume
5 g
Stability
Refrigerated: 24h, Frozen: 7d
TAT
4–24 hours
Order
routine

What Is the Aeromonas Culture Test?

The Aeromonas culture test is a laboratory examination designed to detect the presence of Aeromonas bacteria in a stool sample. Aeromonas is a gram-negative bacterium commonly found in freshwater environments and contaminated water sources. When a person becomes infected by drinking contaminated water or eating contaminated food, the bacteria can cause inflammation of the gastrointestinal tract and symptoms such as diarrhea. This test involves culturing a stool sample to identify the bacteria and provide evidence to support a clinical diagnosis.

Why Might I Need This Test?

If you have gastrointestinal symptoms such as persistent diarrhea, abdominal pain, fever, or bloody stools, especially if you have recently gone swimming, drunk untreated water, or eaten seafood, your doctor may recommend this test. It helps distinguish an Aeromonas infection from diarrhea caused by other conditions, such as viral gastroenteritis or food poisoning, so your treatment plan can be guided appropriately.

How Is the Test Performed?

The test requires only a stool sample. You will need to collect a small amount of stool in a clean container, taking care to keep the sample free of contamination from toilet water or urine. The sample should be delivered to the laboratory as soon as possible, ideally within 2 hours of collection, to ensure accurate results. Laboratory technicians will use specific culture media to grow and detect the presence of Aeromonas bacteria.

Understanding Your Test Results

Test results are usually reported as either positive or negative. A positive result means that Aeromonas bacteria were detected in your stool sample, indicating that you may have an active Aeromonas infection. A negative result means that no Aeromonas bacteria were found, and your symptoms may be caused by something else. Your doctor will interpret the result together with your symptoms, travel history, and exposure history to develop an appropriate treatment plan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

气单胞菌感染是发展中国家和热带地区常见的腹泻原因之一。在免疫功能正常的个体中,感染通常表现为自限性腹泻,可在数天内自行缓解。然而,在儿童、老年人或免疫功能低下的人群中,气单胞菌感染可能导致严重的并发症,如脱水、血便和败血症。及时诊断和适当治疗对于预防并发症至关重要。某些气单胞菌菌株可能对常用抗生素产生耐药性,因此准确的细菌培养和药敏试验对于指导抗生素选择具有重要价值。

Frequently asked questions

What are the symptoms of an Aeromonas infection?
Common symptoms of an Aeromonas infection include watery diarrhea, abdominal pain, nausea, vomiting, and fever. Some people may notice bloody stools or mucus in their stools. Symptoms usually appear within 1 to 3 days after infection and can last from several days up to a week. In people with weakened immune systems, symptoms may be more severe.
How is an Aeromonas infection treated?
Most Aeromonas infections are self-limiting, and the main treatment is replacing fluids and electrolytes to prevent dehydration. In severe cases or for people at high risk, your doctor may prescribe antibiotics. Commonly used antibiotics include fluoroquinolones and cephalosporins, but the specific medication depends on antibiotic sensitivity testing and your individual condition.
How can an Aeromonas infection be prevented?
Steps to prevent Aeromonas infection include drinking water from safe sources, avoiding swimming or playing in contaminated bodies of water, handling food properly, especially seafood, and maintaining good personal hygiene habits. People with weakened immune systems should take particular care to avoid contact with potentially contaminated water and food.
What are the limitations of this test?
The sensitivity of Aeromonas culture can be affected by several factors, including the timing of sample collection, transport conditions, and laboratory technique. A negative result does not completely rule out infection, because the number of bacteria may be below the detection threshold or the sample may not have been collected properly. In addition, some strains of Aeromonas grow slowly and may require a longer incubation period.
Do children need to have this test?
When a child has persistent diarrhea, the doctor may consider Aeromonas testing, especially if the symptoms are severe or accompanied by bloody stools. Aeromonas infection in children carries a higher risk of dehydration and requires close monitoring and prompt treatment. The testing method is the same as for adults and is performed using a stool culture.
  1. 1
  2. 2
  3. 3

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy