Is the upper GI tract imaging painful?

Upper digestive tract radiography is a common imaging examination, is a common non-invasive examination. It refers to the duodenum above the digestive tract radiography, at this stage commonly used barium agent, such as medical barium sulfate added to Arabic gum made barium paste, sometimes added with foaming agent for double contrast, can better show the small lesions of the digestive tract. Upper digestive tract barium radiography to fasting, water ban, obstruction and gastrointestinal perforation to be prohibited. Examination method: During the examination, the patient stands or lies on the examination table for each item of examination. When radiography swallow medical barium sulfate, fluoroscopy observation, photography. No other external action. So it is painless, and the human body is harmless.