这个不用特别担心，现在学术界关于幽门杆菌对人类到底是有害还是无害都还有争议呢，一般来说认为幽门杆菌过量繁殖是有可能导致胃溃疡的，就好像大肠杆菌过量会导致腹泻一样，必须要进行治疗，而仅仅是有少量存在并不一定是坏事。

Might H. pylori even be good for us? Some experts think that H. pylori, like other bacteria living in our gut, may be good for us. However, no-one has yet found a definite advantage from having it although a number of theories have been put forward.