What are the chances of complications with painless colonoscopy?

The chance of complications in painless colonoscopy is about 2.73%.
Complications of painless colonoscopy are generally twofold: complications arising from colonoscopy, such as intestinal distension, bleeding, and perforation; and complications resulting from general anesthesia, such as transient hypotension, dizziness, nausea, and respiratory distress.
The possibility of intestinal distension, bleeding, and perforation exists in colonoscopy whether or not a painless operation is performed. During anesthesia, anesthetic drugs may cause transient hypotension and dizziness. According to the literature, these conditions have only a 2.73% chance of occurring and are closely related to the patient’s state of mind.
Those doing colonoscopy can relax and adjust their mindset appropriately, and the occurrence of complications will be reduced.