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Doctor insights on: Sperm Fertilizing Egg Acrosomal Reaction

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Can sperm affect already fertilized egg?

Can sperm affect already fertilized egg?

No: An egg can be fertilized by only one sperm. Once the egg has been fertilized, it becomes impenetrable and no other spermatozoa can affect the egg. ...Read more

Sperm (Definition)

This sperm is a reproductive cell from the male that either carries a x or an y chromosome that will fertilize the egg cell from the female in order ...Read more


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Can sperm ovulate dead ovum ?

Can sperm ovulate dead ovum ?

Here are some...: Seemingly this Q was answered. But do you mean sperm fertilize dead ovum? If so, the dead material would not biologically fuse to let fertilization take place; then there is no game. More? Ask your ob-gyn doctor timely. Best wish... ...Read more

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Does a fertilized egg release any hormones before implantation?

Does a fertilized egg release any hormones before implantation?

Yes: The embryo releases many hormones and other signals. Most of them are not completely understood and are not able to be measured. But the embryo secretes things that help it to implant into the uterus. ...Read more

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Can abnormal sperm fertilize an egg? Would pregnancy continue normally if the fertilizing sperm was abnormal??

Can abnormal sperm fertilize an egg? Would pregnancy continue normally if the fertilizing sperm was abnormal??

Depends: Hi. "Normal" and "abnormal" are points on a spectrum, with a continuum between them. So it depends how you define normal. Normal sperm (good viability, good swimmers) can hold a very bad allele that can cause really bad disease; would you call that a "normal" sperm since it fertilized the egg? If you define that sperm as abnormal because of the deleterious mutation, then yes, preg can continue. ...Read more

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What happens when abnormal sperm fertilize an egg?

What happens when abnormal sperm fertilize an egg?

Here are some...: Abnormal sperms denote those sperms with odd shape or poor motility, which tend to less possibly penetrate the timely waiting egg. Nonetheless, if luckily and successfully penetrating to get into the egg takes place, fertilization (union) occurs to form zygote which in turn undergo cell division to form embryo, which will embed onto uterine mucosa (endometrium) where it eventually develops fetus ...Read more

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What happens when unfertilized or fertilized egg gets stuck in fallopian tube?

What happens when unfertilized or fertilized egg gets stuck in fallopian tube?

Tubal pregnancy: Fertilized egg in the Fallopian tube is a surgical emergency because as the pregnancy develops the tube will rupture and can be fatal for the mother. Unfertilized eggs would eventually be tea sorbet by the body, but should not get stuck if the Fallopian tubes are normal. See your GYN doc if you think this is happening. ...Read more

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In vitro fertilization= test tube or turkey baster baby?

In vitro fertilization= test tube or turkey baster baby?

IVF/IUI: (grin) if i understand the question, ivf is a 'test-tube baby' rather than a 'turkey-baster' baby. 'turkey-baster' describes (more or less) intrauterine insemination/iui. Happy thanskgiving! ...Read more

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Can sperm fertilize an egg, travel and implant in 2 days?

Can sperm fertilize an egg, travel and implant in 2 days?

Sort of: Sperm can 'travel' through the cervix, uterus, and into the tube and fertilize an egg in 2 days or less. Implantation is independent and always happens 6-7 day after fertilization. ...Read more

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How many days after fertilization does the fertilized egg become a blastocyst? Then embryo? What implants-the blastocyst or embryo?

How many days after fertilization does the fertilized egg become a blastocyst? Then embryo? What implants-the blastocyst or embryo?

The process: As the fertilized egg divides, it is first known as a morula. Approximately 5 days from first fertilization it forms into a hollow ball known as a blastocyst. This blastocyst implants and begins to sort itself out into different layers--the inner group becomes the embryo and the outer layer will work to nourish and protect. At approximately 6-7 weeks from time of fertilization, an embryo begins. ...Read more

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Count is 10 million .. Slugghish motile sperm 25%... Using this immotile sperm will icsi success ? Already we have 2 failed icsi ..

Count is 10 million .. Slugghish motile sperm 25%... Using this  immotile sperm will icsi success ? Already we have 2 failed icsi ..

It should work!: Icsi (injecting a sperm into an egg) bypasses poor motility and should succeed. If you have failed two ivf/icsi cycles, i strongly suggest you defer a third cycle, gather up your records, and undergo a second opinion consult at a facility that has a high ivf success rate (you can see mine, for example, at: http://ivfmd.Com/eng/statistics_1.Htm most of my patients conceive on cycle #1! ...Read more

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Can using PESA method retrieve enough sperms to fertilize egg using ivf without going through ICSI?

Can using PESA method retrieve enough sperms to fertilize egg using ivf without going through ICSI?

Need ICSI: PESA does not produce sufficient number of sperm for an intrauterine insemination - ICSI is required. http://www.advancedfertility.com/testicsperm.htm ...Read more

Dr. Amr Azim Dr. Azim
6 doctors agreed:
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What will happen to other sperm once a sperm has fertilized an egg?

Dr. Amr Azim Dr. Azim
6 doctors agreed:
What will happen to other sperm once a sperm has fertilized an egg?

They dont make it: The egg has an inner mechanism that prevent more than one sperm from entering the egg. The rest of sperm do not make it and are eliminated by special cells in the female genital tract. ...Read more

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Husban sperm count 60 sperm motility 90 normal form 9%elongted 2% small absent acrosomes 5% other abnormalities 84%good for intra uterine insemitation?

Husban sperm count 60 sperm motility 90 normal form 9%elongted 2% small absent acrosomes 5% other abnormalities 84%good for intra uterine insemitation?

Yes: Yes good for iui, but if that is his consistent result (on two tests), and the cervix is normal and you are not using Clomid (clomiphene) as a stimulation drug for fertility treatment, there is no good evidence that IUI actually increases pregnancy rates. Iui became popular as a treatment to balance the negative effect of Clomid (clomiphene) on the cervical mucous. Now with newer drugs not so necessary. Good luck. ...Read more

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Is 16 eggs fertilized out of 27 in IVF process a good fertilization rate?

Is 16 eggs fertilized out of 27 in IVF process a good fertilization rate?

Its ok: I would focus on the encouraging sign that you had 16 fertilized eggs. Hopefully they will continue to develop ...Read more

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Frozen sperm. Fresh eggs. Both proven donors. Nulligravid 42 yo woman. Odds of conception after et with 3?

Frozen sperm. Fresh eggs. Both proven donors. Nulligravid 42 yo woman. Odds of conception after et with 3?

Very good: The odds are excellent as long as all other aspects of your workup have been negative. Pregnancy rate with 2 embryos can give a 70% chance. Replacing 3 embryos in this situation would not be suggested as long as the egg donor was 21-28. Most donors are not accepted over 30. The risk of triplets is quite high and would cause significant obstetrical issues such as prematurity, decreased fetal size.. ...Read more

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