Symptoms of H. pylori positivity include bad breath, indigestion, and weight loss, and are usually treated with quadruple therapy. 1. Symptoms: When H. pylori is positive, the enzyme urease will be broken down in the stomach and can be excreted with the respiratory tract, and the broken down products contain ammonia, so the patient will have bad breath; indigestion and weight loss may also occur. 2. Treatment: Usually a quadruple combination therapy is used for treatment, including a proton pump inhibitor (e.g., omeprazole), two antibiotics (e.g., amoxicillin and clarithromycin), and a bismuth agent (e.g., bismuth potassium citrate). If a patient develops H. pylori infection, it is recommended that he or she seek medical attention in a timely manner and actively cooperate with the doctor for treatment after a clear examination.