The digestive, or gastrointestinal tract (GIT) is a human organ system designed to process and extract nutrients from food, absorb them into the blood and lymph and excrete undigested residues from the body. It is part of the human digestive system.

Most diseases of the digestive system are caused by a complex of reasons. It is different for each pathology, however, the most common of them can be distinguished.

The main factors causing gastrointestinal diseases are divided into external and internal.

A dozen organs participate in digestion, which grind food, assimilate nutrients and remove excess from the body. It is a “full cycle” system - from food absorption and processing to the removal of undigested residues. It is imperative that every element of it works clearly and does not fail.