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Stool Culture

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What Is a Stool Culture?
If you have been having stomach problems, your doctor might order a stool culture or ask for a stool sample. This test can look in your poop for bacteria, a virus, or other germs that might be making you sick.

Why Do You Need It?
Your doctor could order this test if you show any of these symptoms:

Diarrhea that lasts more than a few days
Poop that contains blood or mucus
Stomach pain or cramping
Nausea
Throwing up
Fever
Your doctor may be more concerned if:

You are very young or elderly
You have a weakened immune system
You have traveled outside the United States
You have eaten contaminated food or water
Your symptoms are severe
You may need antibiotics to get rid of the infection or prevent other health problems, like dehydration (losing too much fluid).

How Is a Stool Culture Done?
You will need to give your doctor a sample of your poop. You wont need to do this at the doctors office. Instead, you will be given a special container with a lid to take home. This may have your name and birthdate on it. If not, you can write it on the label.

Your doctor will go over how to collect the sample and any special instructions. In most cases, you will follow these steps:

Place something in your toilet to catch your poop. Your doctor may give you a small container or you could use a clean, empty plastic one that you have. If your stool isnt loose or watery, you could also spread newspaper or plastic wrap over the toilet rim.

Make sure your poop doesnt touch the inside of your toilet. It could pick up germs that arent yours.

Place the sample into the container. Dont use your hands. Your doctor should give you a small spoon or spatula you can throw away after you use it.

Dont overfill the container. For the test, you will only need to provide a sample that is about the size of a walnut. Make sure to include any pieces that are bloody, slimy, or watery.

Avoid getting urine mixed up with your stool. If you need to pee, do so before starting.

Put the container in a sealed plastic bag and wash your hands well with soap and water. Flush any leftover poop down your toilet.

Return the sample to your doctors office as soon as you can. It can be kept in your refrigerator until then, but for no more than 24 hours.

Tell your doctor about any medicines you are taking, since these can affect your test results. He should also know if youare taking any herbs, supplements, vitamins, over-the-counter, or illegal drugs.

When Do You Get the Results?
Once your sample gets to the lab, it will be smeared inside a special sterile plate that helps bacteria to grow. Any that does is looked at more closely under a microscope.

Most of the time, you should get results back within 1 or 2 days.

What Do the Results Mean?
If your test results are negative, that means that they are normal. No germs were found in your poop and you dont have an infection.

A positive test result means that your poop was infected with a germ, virus, or other type of bacteria. The lab will tell your doctor which type it is and which medicines will fight against it. That can help him decide how to treat it.

Dr. Anjali Bartakke
Dr. Anjali Bartakke
DNB, Pediatrician, 18 yrs, Pune
Dr. Bharat Oza
Dr. Bharat Oza
BAMS, General Surgeon Proctologist, 9 yrs, Pune
Dr. Amol Sonawane
Dr. Amol Sonawane
BHMS, Homeopath, 10 yrs, Pune
Dr. Bhushan Chaudhari
Dr. Bhushan Chaudhari
MD - Allopathy, Addiction Psychiatrist Adolescent And Child Psychiatrist, 10 yrs, Pune
Dr. Piyush  Jain
Dr. Piyush Jain
MS - Allopathy, Ophthalmologist Pediatric Ophthalmologist, 5 yrs, Pune
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