DefinitionTrypsin and chymotrypsin are substances released from the pancreas during normal digestion. When the pancreas does not produce enough trypsin and chymotrypsin, smaller-than-normal amounts can be seen in a stool sample.This article discusses the test to look for trypsin and chymotrypsin in stool.Alternative NamesStool - trypsin and chymotrypsinHow the test is performedThere are many ways to collect the samples. Your health care provider will instruct you on how to collect the stool.You can catch the stool on plastic wrap that is loosely placed over the toilet bowl and held in place by the toilet seat. Then put the sample in a clean container. One type of test kit supplies a special tissue that you use to collect the sample, then put the sample in a clean container.Infants and youn