Question on Sperm
2 Replies
Aimee37 - September 6

I have heard that when you do IUI your success drops when you use frozen sperm vs. fresh sperm. This is not the same with IVF is it? I would not think so because you do not really need high motility with IVF since you are connecting sperm with egg right there in the lab.

With this next IVF I am using donor sperm. I have 2 vials, one is over 2 yrs old and one is over a 1 yr old. The age of sperm does not matter once you freeze it. Is this correct? I just fear freezer burn or something. LOL!

Yes...I am an obsessional worrier!

Thanx Dr. Smith! :D

 

Dr Smith - September 7

Dear obsessive worrier. You are in good company on this board. Everyone here worries obsessively - even me.

You are correct that frozen-thaw sperm are prefectly adequate for IVF (as opposed for IUI). The reason for this is that frozen-thawed sperm do not have a long life span and don't hang around long enough to fertilize the eggs in an IUI. Long survival is not necessary in IVF since the sperm are placed in close proximity to the egg and fertilization occurs within about 1-3 hours after insemination. That being said, many programs perform ICSI with frozen-thawed sperm just to be on the safe side.

The sperm can be frozen indefinately. Just pop them in the microwave using the thaw setting and voilla! Good as new. Just kidding. They do not experience "freezer burn". I've used 20 year old frozen sperm and they were just fine. No worries. No, I mean it. No worries.

 

Aimee37 - September 7

hee hee Dr. Smith!!! ;D I love your sense of humor!! I am having ICSI done, my clinic performs ICSI with all frozen sperm. Ok...I feel much better because I just wanted to be assured. I wouldn't want my good looking Scottish donor to go bad on me, he cost me a fortune! ;)

Thanx a bunch for your response & making me smile! :D

 

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