Malignant acid eating refers to the patient’s malignant eating of sour food, after eating, then acid reflux, heartburn, caused by peptic ulcer, chronic gastritis …… So how to check malignant acid eating? The following is to introduce to you. 1, regardless of the clinical choice of fiber gastroscopy or electronic gastroscopy, as the main method of confirming the diagnosis of malignant eating acid. In the endoscopic direct vision, the general situation of malignant eating acid this kind of disease shows the ulcer surface is round, oval or linear, the edge of the sharp, basically smooth, for the grayish white or grayish yellow moss membrane covered, we should pay attention to. 2, the more effective means of checking the malignant food acid is X-ray barium meal. The main X-ray image of this kind of disease is the niche or niche shadow, which refers to the barium suspension filling the depressed part of the ulcer. Gastric ulcers are also clinically characterized by a small curvature of the stomach and a spasmodic gastric notch is often seen contralateral to the ulcer. When duodenal ulcers are present, the patient presents clinically with a bulbous portion, which is usually smaller than the gastric niche. Therefore, we should also pay attention to this type of method. 3, the examination of malodorous acids should also look for HP infection. Generally this type of examination measures are divided into several aspects, first of all, directly from the gastric mucosa tissue to check HP, including bacterial culture, tissue smear or section staining microscopy of bacteria, secondly, with urease test, respiratory test, gastric fluid urea nitrogen test and other methods to determine the activity of urease in the stomach, and once again, serological examination of anti-HP antibodies. With these tests, it is possible to effectively diagnose malignant acidophagy.