宋代名医许叔微在《本事方》中曾记载一则有趣的故事:安徽广德顾安中出外,偶然脚腿肿痛,不能行走,只好乘船回家。在船上,他将两脚搁在一包装货的袋上,下船时发现自己脚腿肿胀竟然已经减轻,疼痛减少,感到十分惊奇,就问船家袋中装的是何物?船家回答是木瓜。顾安中回家后于是就买 Xu Shuwei, a famous doctor in the Song Dynasty, recorded an interesting story in the book “The Party of Honour”: Gu Anzhong, from Guangde, Anhui Province, had accidental foot and leg swelling and could not walk, so he had to go home by boat. On the boat, he tossed his feet on a packaged bag, and when he got off the boat, he found that his leg was swollen and his pain was reduced. He was very surprised. He asked what was in the bag of the ship. The boater answered that it was papaya. After Gu Anzhong returned home, he bought it.