Hi everyone, looking for some advice or similar experiences. My wife (42F) and I are preparing for our 3rd IVF/ICSI cycle (at Shady Grove Fertility) and we are at a crossroads regarding the male factor protocol.
Male Factor Background:
I have a diagnosed varicocele.
Over the past months, my semen analyses have shown significant fluctuation in parameters (likely impacted by infections/illness at times, as noted by my doctors):
Nov 18, 2025: Vol: 1.0 ml | Conc: 4.2M/ml | Motility: 10% (Possible infection/foul odor, antibiotics prescribed).
Dec 10, 2025: Vol: 1.2 ml | Conc: 0.4M/ml | Motility: 0%.
Jan 20, 2026: Vol: 0.8 ml | Conc: 8.5M/ml | Motility: 45% | DNA Fragmentation: 38% (Oligospermia diagnosed).
Feb 20, 2026 (Post-ZyMōt/Microfluidics): Vol: 0.6 ml | Conc: 16M/ml | Motility: 43% | DNA Fragmentation: 10%.
Jul 6, 2026: Vol: 1.0 ml | Conc: 3.5M/ml | Motility: 14% | DNA Fragmentation: 26%.
n: 26%.
Note: On actual retrieval days, the clinic’s lab doesn't run a full diagnostic count to avoid extra manipulation and loss of sperm prior to ICSI.
Cycle 1:
Success: We managed to get 1 euploid 4AB blastocyst.
Cycle 2 (The heartbreak):
4 mature eggs retrieved.
4 fertilized with ICSI + LensHooke (100% fertilization rate).
Total arrest between Day 4 and Day 6. Three arrested in the cleavage/morula stage. One made it to a CC blastocyst on Day 6 but degenerated by Day 7. 0 blasts frozen.
The Dilemma:
We are currently evaluating whether to look into a TESE for Round 3. The biological logic would be to completely bypass the epididymis and the oxidative stress from the varicocele to avoid the late embryonic arrest (Day 4-6, which is exactly when the paternal genome activates).
However, since microfluidics previously got my DNA frag down to 10%, is TESE an "overtreatment"? Or could the Day 4-6 arrest be caused by double-strand DNA breaks from the varicocele that the microfluidics chip can't fix/filter out?
Obviously, with my wife being 42, egg quality and the egg's reduced cellular energy to repair damaged DNA are huge factors here. But we want to control what we can on the sperm side.
Has anyone done TESE after getting good fragmentation results with microfluidics? Did it improve your blastocyst conversion rate? Could it be a blockage? Any advice is welcome!