1. In the book, why do you think that the author explains all these tests and procedures they have to do at the fertility clinic, but he never says what is wrong with them?

I think the author wants to leave it up to the reader whether it is Amir or his wife that has the problem. Certainly Afghan culture is much harder on the woman in all circumstances, especially matters of reproduction. This also tests Amir's progressive resolve. Is he going to separate himself from an Afghan social system he already dislikes or will he fall into similar male attitudes?