At the end of June 1870, a specialist in the problems of urinary tracts, Germain Sée, was finally summoned to examine him. Sée reported that the Emperor was suffering from a gallstone. On 2 July, four eminent French doctors, Nélaton, Ricord, Fauvel and Corvisart, examined him and confirmed the diagnosis. They were reluctant to operate, however, because of the high risk (gallstone operations did not become relatively safe until the 1880s) and because of the Emperor's weakness. Before anything further could be done, however, France was in the middle of a diplomatic crisis.