self infertile

例句：

1. 1. The couple was unable to conceive naturally, leading to self infertility.
   这对夫妇自然无法怀孕，导致自体不育。
2. 2.The disease is characterized by autoimmune reactions that affect the immune system.
   这种疾病的特点是自身免疫反应，影响免疫系统。
3. 3. Autoinfertility can be caused by various factors, including genetic and environmental factors.
   自体不育可能由多种因素引起，包括遗传和环境因素。