Capsule gastroscopy belongs to a new generation of endoscopy technology, no intubation, so there is no obvious pain, the examination process only need to swallow a “pill” with water, in it through the esophagus, stomach, intestines, you can take pictures to see the stomach clearly, so it is a very advanced examination technology, but there are disadvantages: 1, can not follow the doctor’s intention to control the direction, if the general gastroscope, a certain If the general gastroscopy, a subtle place can not be seen clearly or there are suspected lesions, you can patiently and slowly find. But the capsule gastroscope is not controlled, in the process of its entry into the esophagus and stomach will continue to take pictures, some corners may be missed, so that the capsule gastroscope is not as clear and detailed as the conventional gastroscope. 2, capsule gastroscopy can not do mucosal tissue biopsy examination, capsule gastroscopy can only photograph the lesion, but can not confirm the histology, to further determine the need to do gastroscopy to do histological examination. Unlike ordinary gastroscopy, when a polyp or mass is detected, it can be biopsied immediately to confirm whether it is benign or malignant, which is very important to the patient. Capsule gastroscopy is a new technology with incomparable advantages, but it is more costly and therefore more expensive. It also cannot completely replace conventional gastroscopy.