你说得对,如果没有携带遗传病的话就可以自然怀孕。可是以我看到一篇医学文章说,像唐氏儿这样的病并不是遗传的而是因为制造卵子/精子的时候出现问题,“This is caused by abnormal cell division during the development of the sperm cell or the egg cell.” 姐妹们也可以看一下这篇文案: https://www.mayoclinic.org/disea ... 0percent%20of%20the,cell%20or%20the%20egg%20cell.