Gastrointestinal (GI) disease includes several different disorders and can affect any part of the digestive tract. Some are minor and resolve quickly, while others can be serious or chronic. In this two-part series, we’re exploring a few common types of GI disease, including their symptoms, diagnosis, and treatment. GI disorders are classified into two main types: functional and structural. The first article in the series focused on functional GI diseases; this one will discuss structural disorders.