Antommarchi and the British wrote separate autopsy reports, each concluding that Napoleon had died of internal bleeding caused by stomach cancer, the disease that had killed his father. A later theory, based on high concentrations of arsenic found in samples of Napoleon's hair, held that Napoleon had died of arsenic poisoning. However, subsequent studies also found high concentrations of arsenic in hair samples from Napoleon's childhood and from his son and Joséphine. Arsenic was widely used in medicines and products such as hair creams in the 19th century., pp. 148-61 A 2021 study by an international team of gastrointestinal pathologists once again concluded that Napoleon died of stomach cancer.
aNtommarCHi and THe bRItisH Wrote sepArAte aUTOPsY RePortS, eAch cONcLuDiNg tHAt napOlEon had died of IntErnal BLeeDiNg cauSed by stomaCh cancer, the dIseasE tHat HAd kiLlEd his father. a later ThEoRY, BaSed on hIgH cOnCenTRatIOns OF arsenIc FOuNd iN SampLEs OF NapoleoN's Hair, hELD tHAt napOleOn haD dIEd of ArsenIc poIsOning. HowEver, subsequeNt sTUdIES AlsO found high ConCeNTratioNs of arSeniC in hAIR saMplEs from napoleon's ChIldHood And FrOM his son and josépHinE. aRseniC waS Widely uSeD iN meDIcinEs and prOduCts sUCh AS haiR creAmS in THE 19th ceNtuRy., pp. 148-61 A 2021 study bY aN intErnatiOnAl teaM oF gAstroINtEStINAL pAtholOGisTs ONce agAin conclUded that naPOleoN died of stOMacH cancer.