Positive caga antibodies can be caused by a previous H. pylori infection or a current H. pylori infection, and require observation and medication depending on the cause. The caga antibody is a means of detecting H. pylori infection. If it is positive, it is considered to have been infected with H. pylori or to be in the midst of H. pylori infection, and it is necessary to carry out a carbon 13 or 14 breath test in time to further determine the situation. If the infection is caused by H. pylori, there is no need to worry too much, and there is no need to carry out special treatment; if there is now H. pylori infection in the digestive tract, it is necessary to carry out triple or quadruple therapy. For example, choose omeprazole, lansoprazole, rabepra, metronidazole, amoxicillin, bismuth citrate, and other proton pump inhibitors, antibiotics, bismuth drugs for combination therapy. Helicobacter pylori can cause gastritis, gastric ulcer and even gastric cancer and other diseases, need to pay attention to under the guidance of the doctor active treatment.