 He was also one of the first to understand the importance of pathology, the danger of the spread of infection and how the problem of inflammation of the wound, bone lesions and even tuberculosis often undid any benefit that was gained from the intervention.He consequently adopted the position that all surgical procedures should be used only as a last resort.Hunter's student Benjamin Bell (1749–1806) became the first scientific surgeon in Scotland, advocating the routine use of opium in post-operative recovery, and counseling surgeons to "save skin" to speed healing; his great-grandson Joseph Bell (1837–1911) became the inspiration for Arthur Conan Doyle's literary hero Sherlock Holmes.