Crohn’s disease is a poorly understood autoimmune reaction that causes inflammation of the gastrointestinal tract. Here's ...

A 50-year-old woman with Crohn's disease was taken to surgery for multiple strictures of the terminal ileum causing small bowel obstruction. Proximal to the diseased segment there was another diseased ...

This story is part of a series exploring human anatomy and physiology complexities. Each story in this collection showcases discoveries reshaping our understanding of the body's inner workings, ...

The gut microbiome is an important ecosystem of microbes that lives in each one of us, and its strength affects our overall health. However, the small intestine is an underappreciated part of the gut ...

The absorption of fat across the gut wall had been thought to depend on passive diffusion. However, a brain–gut circuit has been found that controls the size of surface area for absorption. A compound ...