A small but professional museum located in the area of the historic St. Bartholomew Hospital. In the Middle Ages, more people were gathered with the poor and homeless, and the role of hospitals expanded with the practice of medicine, as demonstrated by many exhibits.
St. Bartholomew's Museum is an interesting but undervalued part of London, which tells the history of hospitals. It involves the history of pharmacy, surgery, nursing, etc. Near St. Bartholomew, the museum is free. You can visit it before visiting St. Paul's Cathedral.