It has also been said that he was actually sick since Shizugatake, but his symptoms did not become apparent until this time. His illness was not described in detail within historical records, yet people generally believe that he was afflicted with leprosy—due to tales from the Edo Period—or syphilis—alternate explanation due to the involvement of bodily fluids.
It has been said that he fell ill at Shizugatake but his symptoms did not appear until now. His condition was not extensively documented in historical records; however, people generally believe he had leprosy, as suggested by Edo period stories, or syphilis, another theory due to bodily fluid contact.