Gastrointestinal means of or about the stomach and the intestines. Doctors often shorten it to GI, as in the GI tract — the stretch of tube where food is broken down after you swallow it.

Gastrointestinal meansgastrointestinal（腸胃的）指的是 of or about the stomach and the intestines跟胃和腸子有關的。Doctors often shorten it to GI醫生常把它簡稱成GI, as in the GI tract像GI tract（腸胃道） — the stretch of tube where food is broken down after you swallow it也就是你吞下食物之後，被分解的那一段管道。

You will see it on hospital signs and in leaflets: gastrointestinal symptoms (vomiting, diarrhoea, belly pain), gastrointestinal bleeding, and so on.

You will see it on hospital signs and in leaflets你會在醫院的標示和衛教單張上看到它: gastrointestinal symptoms (vomiting, diarrhoea, belly pain)gastrointestinal symptoms（腸胃症狀，像是嘔吐、腹瀉、肚子痛）, gastrointestinal bleeding, and so ongastrointestinal bleeding（腸胃道出血）等等。

It is a formal medical adjective. Ordinary talk uses stomach and gut, or digestive.

It is a formal medical adjective這是一個正式的醫學形容詞。Ordinary talk uses stomach and gut, or digestive日常說法會用stomach（胃）和gut（腸子），或是digestive（消化的）。

Though actually the whole digestive path also includes the mouth and the food pipe; gastrointestinal is strictly the stomach-and-intestines stretch, but people sometimes stretch it to mean the whole digestive system.

Though actually不過其實 the whole digestive path also includes the mouth and the food pipe整條消化道還包括嘴巴和食道; gastrointestinal is strictly the stomach-and-intestines stretchgastrointestinal嚴格來說只指胃和腸子這一段, but people sometimes stretch it to mean the whole digestive system但人們有時候會把它擴大解釋成整個消化系統。