Abstract
The aim of this text is to investigate a little-known aspect of John Locke’s work: the relationship between philosophy and his medical practice. This theme is justified because his philosophical conception is widely known, but his studies in the field of medicine are practically ignored in Brazil. To accomplish this task, the article is divided into threeparts: in the first, we will address the debate on English medical practice in the seventeenth century; in the second, Locke’s penchant for medicine and, finally, in the third, Locke’s medical practice. We hope that this text can contribute to the advancement of research on John Locke in Brazil,especially on his relationship with medicine.