Applying AI in medical contexts, especially for diagnosis, has become very popular in recent years. AI has the potential to make diagnosis more efficient and accurate, improving the overall quality of medical diagnosis and making medical provisions fairer and more effective. Combining the logic of AI with that of modern Western medical diagnosis, it is to some extent intuitive to imagine AI physicians. However, even in its ideal form, AI technology has intrinsic limitations that will prevent it from completely replacing physicians. Although AI can help physicians and patients to develop their own agency, it may strike at the core of physician–patient interaction: generating meaning and constructing personhood/subjectivity. How can we make best use of the efficiency of AI diagnosis while avoiding its potential negative influence? There needs to be a powerful theoretical rejoinder to the fundamental logic of AI diagnosis. It is not enough to deal with specific issues within the realm already delimited by AI diagnosis technology. This paper highlights the need to incorporate the way of thinking of traditional Chinese medical diagnosis and the Confucian theory of “the way of becoming a person.” Both are important theoretical resources that can be used to counterbalance the way of thinking of modern Western medicine and modern Western philosophy, which emphasize subjectivity. On this basis, the relationship between technology and the humanities can be re-examined.