In men with obstructive azoospermia, both percutaneous epididymal sperm aspiration (PESA) and microsurgical epididymal sperm aspiration (MESA) are effective means to obtain sperm for IVF! Make sure to talk with your local
Microsurgical Epididymal Sperm Aspiration - an overview | ScienceDirect Topics
Surgical Sperm Retrieval Procedure | Prasad Hospitals - Hyd