Functional gastrointestinal diseases should first exclude organic diseases (such as tumors, ulcers, etc.) of the esophagus, gastroduodenum, and colon, and be diagnosed only when it is clear that there are no organic diseases such as liver, gallbladder, and pancreas. Generally speaking, doctors will ask patients about their medical history in detail, and further select relevant auxiliary examinations on the basis of physical examination and assessment of alarm symptoms.

　　At present, the diagnosis of gastrointestinal diseases mainly depends on gastrointestinal endoscopy, routine biochemical examination and imaging examination to exclude organic diseases.

　　1. Gastroenteroscopy

　　Digestive endoscopy is the best means to diagnose digestive tract diseases. The use of electronic gastroenteroscopy, enteroscopy and capsule endoscopy has been very popular. At present, it is considered that the most preferred examination to exclude organic diseases is electronic gastroenteroscopy.

　　Electronic gastroscopy can timely detect gastritis, gastric ulcer, gastric cancer and other diseases; Electronic colonoscopy can detect inflammatory bowel disease, intestinal polyps, intestinal cancer and other common diseases; Capsule endoscopy and enteroscopy can timely detect organic diseases such as small intestinal bleeding and small intestinal tumors.

　　2. Routine biochemical examination

　　As a traditional examination method, routine biochemical examination plays an important role in the diagnosis of organic diseases of digestive tract with its advantages of convenience and low price. For example, the stool routine of the three routines can indicate whether there is gastrointestinal bleeding, gastrointestinal infection and other diseases, especially stool pathogenic examination, which can not only diagnose intestinal infection, but also further clarify the etiology of infection.

　　3. Imaging examination

　　X-ray, abdominal ultrasound, CT, MRI and other traditional imaging methods can well find organic diseases of digestive system. For example, barium meal radiography can find organic diseases such as esophageal cancer, gastric cancer, gastric ulcer, etc; Abdominal ultrasound can detect liver tumors, liver abscesses or other abdominal masses of unknown causes.

　　In addition, there is a new method of body surface diagnosis and treatment without any pain - gastrointestinal electrical detection. The Biofeedback Gastrointestinal Dynamometer of Kuancheng Technology automatically collects human gastrointestinal electrical signals by acting on gastrointestinal pacemaker points on the body surface through electrode sheets, calculates and analyzes the collected gastrointestinal electrical signals through special software, and objectively reflects the gastrointestinal peristalsis of patients and the strength of gastrointestinal motility.

　　This diagnostic method is non-invasive, painless, and has no side effects. It can be cross referenced with gastrointestinal endoscopy, X-ray barium meal and other morphological examinations, providing an objective basis for the comprehensive diagnosis, treatment and efficacy judgment of gastrointestinal diseases.

　　Gastric detection interface

Intestinal detection interface

　　The biofeedback gastrointestinal motility instrument not only has the function of detecting and analyzing gastrointestinal electricity, but also has the function of treating functional gastrointestinal diseases. Based on the basic theory of 'gastrointestinal pacing', it uses a new therapeutic waveform to simulate the normal gastrointestinal electrical signal of the human body, acts on the gastrointestinal pacing point, and superimposes acupoint stimulation, so as to inhibit the electrical activity of the ectopic pacing point, and regulate the gastrointestinal peristalsis rhythm towards normalization. Through multi center clinical treatment and observation, the effective rate of biofeedback gastrointestinal motility instrument in the treatment of functional constipation and postprandial discomfort syndrome is higher than 80%, bringing patients a new diagnosis and treatment experience.