During the examination, the patient lies on their left side with their legs pulled up. During the examination, the patient should turn to the back, possibly to the right side or, rarely, to the abdomen with the help of an assistant. The device is lubricated with a gel and then gently inserted into the rectum. During the examination, the anus is dilated by blowing air into it and occasionally by water.
During the examination, the patient may experience an urge to defecate provoked by the device, abdominal bloating and cramps due to the blown air, and abdominal pain because of the tension in the intestines. In patients where abdominal surgeries have caused intercrescence, these complaints are more common.
Pharmacological preparation may cause dizziness, nausea, vomiting, and hiccups.