Lin Xiaoguai was shocked. She remembered that one of the symptoms of polycystic ovary syndrome (PCOS) was obesity and excessive hair growth. She had also read an article which mentioned that excessive obesity in males could affect their fertility.
With that in mind, Uncle Jiang and Aunt Jiang's situation indeed seemed to fit the bill.
She recalled that there was a family in the old district where she lived that had married a daughter-in-law with this condition, and ironically, the daughter-in-law was diagnosed only after giving birth to a daughter.
While those with PCOS may struggle to conceive, it doesn't mean they cannot get pregnant at all. Lin Xiaoguai suspected that in the case of Uncle Jiang and Aunt Jiang, it was due to the poor diet and malnutrition of their era, and moreover, their issues were not solely on Aunt Jiang's side.