It has been a month since I took the medication for Helicobacter pylori, and the stool is not shaped and constipated, considering that it may be caused by factors such as dysbiosis, incomplete sterilization, or gastroenteritis. Antibiotics, acid-suppressing and stomach-protecting drugs that promote gastrointestinal peristalsis can be applied, or surgical treatment. 1. Bacterial dysbiosis: Eradication of Helicobacter pylori requires the use of quadruple drugs, which may lead to bacterial dysbiosis in the process of eradication and the appearance of unshaped stools, which can be regulated by taking probiotics, such as bifidobacteria capsules. 2. Incomplete sterilization: many patients will have incomplete sterilization after H. pylori treatment, there will be symptoms such as unformed stools, constipation, bad breath, epigastric discomfort, etc., generally need to replace antibiotics for sterilization treatment. 3. Gastroenteritis: poor diet, lifestyle habits lead to gastroenteritis, gastrointestinal function is impaired, so that the food digestion is not sufficient to appear in the stool or constipation symptoms, can be applied to inhibit acid gastric protection, to promote gastric motility of the drug, such as pantoprazole, domperidone and so on. Adverse reactions such as abdominal pain, diarrhea, nausea, headache and rash may occur after oral intake. All of the above drugs should be under the guidance of a doctor. If the above symptoms occur, it is recommended to go to the hospital for early and regular treatment under the guidance of a doctor.