X-ray imaging is basically painless, or some of the imaging will bring mild discomfort to the patient, so this situation needs to be analyzed specifically.There are three types of X-ray imaging methods, as follows: 1, oral method, such as upper gastrointestinal imaging, oral barium sulfate contrast agent, the patient just need to drink the contrast agent, so this test will not be painful; 2, perfusion method, such as hysterosalpingography, intravenous pyelography, these tests require retrograde use of cystoscopy to insert the examination tube into the ureter, or the use of colposcopy to insert the examination tube into the uterus, this test will bring mild discomfort to the patient. The examination requires retrograde use of cystoscopy to insert the examination tube into the ureter or colposcopy to insert the examination tube into the uterus, which will bring mild discomfort to the patient. In addition, the lower gastrointestinal tract imaging will go through the hepatic valve retrograde infusion of contrast medium, which will bring slight discomfort to the patient, but this discomfort can be tolerated by the majority of the people; 3, degradation method, such as cholangiography, but also to do intravenous pyelography, this test is the contrast medium through the vein into the blood vessels, and then through the liver secretion, or through the kidney secretion to develop the image, this test is also not painful.