In August 1911, Soseki relapsed into gastric ulcer immediately after a lecture in Kansai, and was hospitalized at the Osaka Gastrointestinal Hospital in Osaka (in 1932, Hideki YUKAWA was adopted as husband for the daughter of the family running the hospital, and in 1950, the hospital was renamed Yukawa Gastrointestinal Hospital.)
明治44年（1911年）8月、関西での講演直後、胃潰瘍が再発し、大阪の大阪胃腸病院（1932年に湯川秀樹が婿養子となる。1950年に湯川胃腸病院と改称。）に入院。