Another follicle size question..

[Kaylakin]

I'm confused. I know for clomid, I thought docs like to see at least 18mm size for a follicle to ovulate. Is this a good size for at the actual ovulation time or is it a good size to see and then use a trigger shot or wait another day or two before an IUI. So in fact, is the actual follicle bigger than 18mm when ovulating ? Does my question even make sense? Thanks in advance..haha..

 

[PCOSMomToTwo]

My doctor always looks for 20mm before a trigger shot. A follicle will grow 1-2mm every day, therefore it is POSSIBLE to take a trigger with 18mm size follicle since ovulation doesn't occur for 24-36 hours after shot. BUT, you will have a better chance of the follicle to rupture if it is over 20mm.

For example, mine was 22mm and the doc gave me a trigger that day. I felt myself ovulate the very next day.

I hope that helps!

 

[rachelle1975]

I know IVF is a little different but when you have your monitoring scans they are looking for a good selection of 18-22mm follies and then you trigger - they should grow a little more before they are released then.

Good luck

 

[cottonlily]

My RE looked for 15-18mm, triggered that night and did IUI the following morning. 15-18 is large enough and allows some room to grow a tad more in the next day or two.

 

[Mrs. Bear]

My RE likes to see over 20 as well, though 18 is still big enough to have grown to that between the trigger and ovulation.