A stool culture is done to identify the cause of lower gastrointestinal tract infections in case of diarrhea or other symptoms. This diagnostic test distinguishes between pathogenic bacteria that cause digestive tract diseases from the normal flora. It also detects pathogenic viruses and fungi.
Rectal Culture - An Overview
Rectal culture is a laboratory test to identify bacteria and other microorganisms in the rectum. To know more, read the article.