how long does a stool sample take to come back

Stool sample test results typically take from 1 to 3 days to come back, depending on the type of test being done. Some tests may return results in 24 to 48 hours, while others, like cultures or specialized tests, can take up to 3 to 7 days. The time varies based on what the healthcare provider is testing for and the method used in the lab.