Atrophic gastritis taking probiotics generally does not work. Probiotics mainly enter the intestinal tract to regulate intestinal flora, establish a beneficial bacterial environment, and inhibit the production of harmful bacteria, but the cause of gastritis is not dysbiosis, and the causes of gastritis are as follows: 1. Infection: the common cause is Helicobacter pylori infection; conventional treatment is a quadruple therapy of two antibiotics (such as amoxicillin and metronidazole) + a proton pump inhibitor (omeprazole) + a bismuth agent (bismuth pectin). 2. Dietary factors: rough diet, fast eating, drinking, smoking, eating hawthorn and persimmons on an empty stomach, etc., leading to poor blood flow to the gastric mucosa, resulting in the formation of gastric stone wear, gastric mucosal erosion or even ulceration; 3. Drug factors: such as non-steroidal anti-inflammatory drugs, anti-tumor drugs, potassium chloride tablets and other drug stimulation; 4. autoimmune problems: autoimmune gastritis can lead to chronic gastric body atrophy; 5. bile reflux: it has a great relationship with a variety of gastrointestinal diseases or gallbladder diseases, and the main symptoms of the onset of the patient will be manifested in abdominal distension and abdominal pain, nausea and vomiting, digestive bleeding and so on. Atrophic gastritis and probiotics basically no clear correlation.