A woman's mother and sisters are also important indicators. If one of them has lost fertility at an early age, there's a one-in-three chance that she'll follow in their footsteps. What's more, if she smokes, has had uterine surgery, or has a history of malignant tumors with chemotherapy or radiation, she should be prepared: her fertility is likely to decline faster than most.
母親、姐妹也是重要的參考指標，只要當中有人的停經時間特別早，自己就有 1/3 機率步上後塵；其他如有抽煙習慣、卵巢曾開過刀，或曾有惡性腫瘤病史而接受化療、放射線治療的婦女，也要有心理準備──自己的生育能力會下降地比一般人更快。