Though Sanyo continued his writing and tried to complete such works as "Nihon Seiki" and "Tsugi", his health condition began to deteriorate with persistent hemoptysis since he turned 51 years old or so at the beginning of Tenpo era.
山陽はその後も文筆業にたずさわり『日本政記』『通議』等の完成を急いだが、天保年間に入った51歳ごろから健康を害し喀血を見るなどした。