Is it possible to perform a painless gastroscopy without inserting a tube?
Gastric disorders require gastroscopy for definitive diagnosis. However, many individuals feel anxious or fearful about undergoing this procedure—particularly due to concerns about pain. Several types of gastroscopy are available, including conventional (standard) gastroscopy and painless (sedated) gastroscopy performed under anesthesia. So, can painless gastroscopy be performed without intubation? Let’s explore this further.
Can painless gastroscopy be performed without intubation?
During gastroscopy, a slender, flexible endoscope—equipped with a camera at its tip—is inserted through the mouth and advanced into the upper gastrointestinal tract to directly visualize the stomach and other structures. In fact, all forms of gastroscopy require endoscopic intubation; thus, there is no such thing as a “non-intubating” gastroscopy. However, gastroscopy can be broadly categorized into two types: conventional (painful) gastroscopy and painless (sedated) gastroscopy. Painless gastroscopy is performed while the patient is under general anesthesia. Prior to the procedure, an anesthesiologist administers intravenous sedation or general anesthesia, which not only shortens examination time but also eliminates discomfort and pain during the procedure.

Because patients remain unconscious and feel no pain throughout the procedure, it is termed “painless gastroscopy.” In contrast, conventional gastroscopy typically involves topical anesthesia applied to the throat (e.g., via oral anesthetic spray or gel) before insertion of the endoscope. While this helps reduce gag reflexes and discomfort, patients may still experience sensations of pressure, nausea, or mild distress during the exam. Importantly, regardless of the technique used, intubation remains essential for all gastroscopic examinations—there is no gastroscopy that avoids intubation entirely. For patients who cannot tolerate endoscopic intubation, an alternative diagnostic option is upper gastrointestinal (GI) contrast radiography (barium swallow study).
We hope the above information is helpful to you.