Find out what you need to know about the string test, and discover when and why it's performed, and how it may affect health.

Researchers say the test is a less invasive way of monitoring eosinophilic esophagitis than using an endoscope, a long, thin tube attached to a camera, into the body. Results from Ackerman’s ...

A ‘sponge on a string’ pill test can identify which people with a condition called Barrett’s esophagus have a low risk of developing esophageal cancer - sparing them uncomfortable endoscopies.