The difference between capsule gastroscopy and traditional gastroscopy

The principle of capsule gastroscopy is to pass through the position of pill size and directly reach the stomach, so there will be no obvious irritation and pain, but the cost is relatively high and the technical content is relatively high. Traditional gastroscopy reaches the throat and stomach through the mouth, directly observing gastric mucosa and other lesions, so there is a certain irritation, even showing nausea and vomiting, mucosal damage and other side effects, but the cost is relatively low.