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Doctor insights on: Size Of Follicle Before Ovulation

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Follicle (Definition)

An ovarian follicle contains a hollow ball of cells with an immature egg in the center. It is a structure within the ovary containing the egg that ...Read more


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Do follicles always ovulate at the same size? If so, what size?

Do follicles always ovulate at the same size? If so, what size?

No: An ovary is about an inch to inch and a half and contains the various follicles in various stages and sizes hopefully an obgyn will add on!

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Is follicle size 13.5 on day 13 normal.?! will I ovulate this time

Is follicle size 13.5 on day 13 normal.?! will I ovulate this time

Small: The follicle usually reaches 18 to 20 mm when it is ready to ovulate. In the days preceding ovulation, follicles usually grow approximately 1 mm per day. Based on your number, I would guess you will be ovulating in 5 to 6 days, but this is just a guess, and it may be that you won't ovulate at all this cycle. Unfortunately it's hard to tell in advance what will happen. Would luck!

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What is ideal size for follicle to ovulate? Is 18 mm considered mature?

Natural cycle?: 18 mm in a natural cycle (no drugs) is mature; in a Clomiphene cycle would be more like 22-23 mm.

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Is there any chances of ovulation naturally f follicles are in size of 1.1-0.9?

Is there any chances of ovulation naturally f follicles are in size of 1.1-0.9?

Not yet: 9-11mm is probably too small to ovulate. Typically they are around 20mm when ovulation occurs.

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What should be the size of follicles for ovulation? I ve 16 and 15 on day 15 of cycle.

What should be the size of follicles for ovulation? I ve 16 and 15 on day 15 of cycle.

Ovulation: Generally speaking of follicle is able to rupture and emit the eighth at approximately 18 mm or greater. Nature is funny and full of variability and some sure there are follicles that rupture at an even smaller size and sometimes we see follicles as big as 30 mm that then ovulate spontaneously. I hope this helps.

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Do follicles cause ovulation? If no, what does? If yes, does the follicle size matter?

Follicles: Contain the developing eggs which can be "ovulated" when certain hormonal sequences occur. But it's your body releasing a surge of luteinizing hormone that stimulates ovulation.

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What is follicle size to ovulate induced by gonadotrophin injection?

HCG trigger: IN a natural cycle between 16-18 mm, in a Clomiphene cycle between 20-24 mm, in a hMG/FSH cycle between 16-20 mm - these are typical, not hard fast rules.

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Does dupahastone 10 mg prevent ovulation if I take it twice a day when the follicle size is 15 mm and 16 mm?

Possibly: It is possible that it may prevent ovulation and/or prevent implantation of a pregnancy. I would be very cautious about relying on it to prevent pregnancy though.

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Is it true that some women, small % of women ovulate with 15-16mm follicles? If so, are eggs good size to be fertilized? My dr said this is possible.

Disbelief?: Do you think the doctor would lie to you? An egg is microscopic. So is the sperm. They cannot be seen with the naked eye. The ovarian follicle size is meaningless.

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My follicle size 11.9mm on cd 17th....Any possibility for ovulation. As I iiregular mensus?

Small follicle: 11.9 mm is too small for a pre-ovulatory follicle, so you are not close to ovulation. If the follicle continues growing to around 16 mm (in a natural cycle) it may well ovulate; I've seen this up to about day 25. Good luck.

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Hi Dr., Following are my ovulation study results: Day 12 & 14 : 12 mm follicle in Left ovary Day 16 : 14 mm follicle in Left ovary Day 18: 12 mm follicle in Left ovary Can this be possible? Why would the follicle size decrease?

Hi Dr., Following are my ovulation study results: Day 12 & 14 : 12 mm follicle in Left ovary Day 16 : 14 mm follicle in Left ovary Day 18: 12 mm follicle in Left ovary Can this be possible? Why would the follicle size decrease?

Discuss with doctor: It is important to know if you are currently being treated for ovulation problems. Follicular monitoring can be done to assess one’s response to treatment. It is unclear from these isolated measurements if ovulation occurred.

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Now on 2nd round of 100mg clomid (clomiphene). On cd11, follicle size is 12x9mm, 10x8mm. Ovulated on first cycle of 100mg clomid (clomiphene).Is it possible for ovulation?

Now on 2nd round of 100mg clomid (clomiphene). On cd11, follicle size is 12x9mm, 10x8mm. Ovulated on first cycle of 100mg clomid (clomiphene).Is it possible for ovulation?

Not yet: Those follicles are way too small for ovulation, but d11 is early for most women. They may very well become large enough in the next week or so. What day did you ovulate in your first Clomid (clomiphene) cycle? Good luck!

Dr. Philip Chenette
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Ovulation (Definition)

Ovulation is the act of the ovary releasing the egg after it has been hormonally prepared, to be ...Read more