Which factor most influences the choice of sperm retrieval method for ICSI?

• A. Patient preference only
• B. Sperm yield and invasiveness of the retrieval method
• C. Cost alone
• D. Labor availability

Answer: (B)

In selecting a sperm retrieval method for ICSI, the central idea is to balance obtaining enough viable sperm with the invasiveness and risk of the procedure. Since ICSI relies on injecting a single sperm into an egg, even a small yield can be sufficient, so the preferred approach is the one that maximizes the chance of finding usable sperm while minimizing patient risk and recovery burden.

If the patient has obstructive azoospermia, less invasive methods like epididymal sperm retrieval can often provide ample sperm with lower risk, making them a strong choice. In non-obstructive azoospermia, sperm may be scarce, so more targeted or invasive techniques (such as testicular sperm extraction, sometimes performed with microdissection) might be necessary to locate even a few viable sperm, despite higher complexity and risk. The goal is to obtain the needed sperm efficiently, rather than being limited by cost, availability, or preference alone.

Cost, convenience, and patient logistics can influence the practicality of the plan, but they do not supersede the fundamental requirement to maximize retrieval yield while minimizing invasiveness.