The differences between gastroscopy and colonoscopy are mainly in the treatment purpose, preoperative preparation, and the way of entering the scope.
The differences between gastroscopy and enteroscopy are mainly as follows:
1. Different therapeutic purposes: enteroscopy is mainly used for the examination and diagnosis of chronic gastrointestinal bleeding of unknown etiology and various intestinal diseases. Gastroscopy is the main examination method for diagnosing upper gastrointestinal diseases and is an important examination method for clarifying organic dyspepsia.
2. Different preoperative preparations: 4-6 hours before colonoscopy, you need to drink intestinal cleansing medications such as polyethylene glycol electrolyte powder, while 6-8 hours before gastroscopy, you need to abstain from food and water, and you don’t need to take medications.
3. Different ways of entering the mirror: enteroscopy needs to enter the mirror through the anus, gastroscopy needs to enter the mirror through the mouth.