If none of the options to treat azoospermia works, there exist other alternatives to have children with azoospermia. In cases of obstructive azoospermia, a technique called ICSI (Intracytoplasmic Sperm Injection) can be used with sperm that has been directly collected from the testis, either through testicular biopsy, or epididymal or testicular aspiration.
With non-obstructive/secretory azoospermia, or when ICSI is unsuccessful, sperm donation is the most recommendable option. See also: What Is Sperm Donation?
Read the full article on: What is the best treatment for men with azoospermia? ( 56).

Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.