babybumpage
Mr. BUMPAGE
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As a master's student, I learned how to search a few journals, and one medical journal was by a gentlemen you will see below. The journal referenced new SA guidelines, so I went to the Dr.'s website and found this. I think the new morphology guidelines make a LOT more sense, so anyone who has had a SA please read this.
THURSDAY, JULY 01, 2010
Sperm Morphology: New Guidelines Announced: 4% is Normal
Wow, what a relief to know that what we have been saying for years is now
finally officially stated. Any sperm morphology over 3% is considered normal.
How did this change come about? The World Health Organization (WHO) determines
the normal parameters for semen including volume, count, motility, forward
progression and morphology. The WHO published their guidelines in 1987, with
updates in 1992 and 1999. The original normal cutoffs were based on estimates
from old data, some of it dating back to the 1950s. There were inconsistencies
in the way data was collected, ie the sperm studied was collected and analyzed
in many centers, but there was little regulation of how the tests were being
performed. Plus there was not clear data on the history of the men.
This time the semen tests were performed using similar protocols in all of the
testing centers. Plus, some history was obtained from the men, mostly related to
fertility status.
4500 men in 14 countries on 4 continents were tested. Australia, China, Denmark,
Germany, Chile, Singapore, France, the UK, and the USA were some of the
countries included.
Men were placed into one of 4 groups.
Fertile men. All men in this group had initiated a pregnancy sometime in the 12
months preceding testing. This was the most important group because the
researchers could establish normal values based on men know to have fertile
sperm.
There were 3 other groups evaluated. To save a little confusion, Ill summarize
and say 2 groups were a little more random in nature and the fertility status of
the men was mostly unknown. The 4th group was also fertile, but the time since
last pregnancy was unknown and may have been longer than 12 months.
The results.
The normal fertile mens sperm had the following results.
Volume: The median (midway between the lowest and highest results) was 3.7 cc,
but anything over 1.5 cc was considered normal
Concentration: the median was 73 million but anything over 15 million was
considered normal
Motility: the median was 61%, anything over 40% being normal
Morphology: the median was 15%, anything over 3% was deemed normal.
Some important points.
You may have noticed that morphology is not the only parameter with a new normal
value. Volume was at 2.0 cc, now it is at 1.5cc. A normal count was 20 million,
this changed to 15 million. Motility was 50%, now its 40%. The normal
morphology had the biggest change, as it went from 15% to 4%.
Keep in mind that in this group, all of these men were fertile, so even men with
levels lower than the new definition of normal had working sperm. The normal
values were established mathematically. If you were in the upper 95% of the
fertile people you were deemed normal. The bottom 5% of the fertile people was
deemed abnormal. This 95%/5% cutoff is the system used to define cut offs for
other tests such as TSH, Prolactin and many others.
When comparing the different groups of men there were very slight differences in
volume, count, etc, but hardly worth mentioning. Fertile men did have slightly
higher volume and counts then men whose fertility status was unknown. Morphology
was mostly similar in the different groups. Remember, there was no group of men
who had established infertility, so in this study there is no way to compare
normal fertile men to known infertile men.
And even though we have no details on the women, knowing that they became
pregnant in the past year is probably all the information we need.
So now you know. Any morphology over 3% is considered normal. If your doctor
tells you otherwise, ask him if he has seen the new WHO guidelines.
To take it one step farther, can there really be difference between 4% and 2%? I
doubt that there is a difference between having 96% abnormally shaped sperm and
98% abnormally shaped sperm. So as I have said before, at our practice here at
NYU, morphology is not considered with much respect, except in some rare cases
where the sperm is unusually abnormal.
I hope this helps.
For those of you who want more details, here is the link.
www.who.int/reproductivehealth/topics/infertility/cooper_et_al_hru.pdf
Dr. Licciardi
https://infertilityblog.blogspot.com/
ABOUT ME
DR. LICCIARDI
I have been practicing infertility at NYU for 17 years. Basic infertility,
reproductive surgery, ovulation induction, IVF, and egg donation are all areas
of my expertise. Most of my patients are from New York , but people come to see
me from other states and other countries. You can read all about me at my
website, DrLicciardi.com.
THURSDAY, JULY 01, 2010
Sperm Morphology: New Guidelines Announced: 4% is Normal
Wow, what a relief to know that what we have been saying for years is now
finally officially stated. Any sperm morphology over 3% is considered normal.
How did this change come about? The World Health Organization (WHO) determines
the normal parameters for semen including volume, count, motility, forward
progression and morphology. The WHO published their guidelines in 1987, with
updates in 1992 and 1999. The original normal cutoffs were based on estimates
from old data, some of it dating back to the 1950s. There were inconsistencies
in the way data was collected, ie the sperm studied was collected and analyzed
in many centers, but there was little regulation of how the tests were being
performed. Plus there was not clear data on the history of the men.
This time the semen tests were performed using similar protocols in all of the
testing centers. Plus, some history was obtained from the men, mostly related to
fertility status.
4500 men in 14 countries on 4 continents were tested. Australia, China, Denmark,
Germany, Chile, Singapore, France, the UK, and the USA were some of the
countries included.
Men were placed into one of 4 groups.
Fertile men. All men in this group had initiated a pregnancy sometime in the 12
months preceding testing. This was the most important group because the
researchers could establish normal values based on men know to have fertile
sperm.
There were 3 other groups evaluated. To save a little confusion, Ill summarize
and say 2 groups were a little more random in nature and the fertility status of
the men was mostly unknown. The 4th group was also fertile, but the time since
last pregnancy was unknown and may have been longer than 12 months.
The results.
The normal fertile mens sperm had the following results.
Volume: The median (midway between the lowest and highest results) was 3.7 cc,
but anything over 1.5 cc was considered normal
Concentration: the median was 73 million but anything over 15 million was
considered normal
Motility: the median was 61%, anything over 40% being normal
Morphology: the median was 15%, anything over 3% was deemed normal.
Some important points.
You may have noticed that morphology is not the only parameter with a new normal
value. Volume was at 2.0 cc, now it is at 1.5cc. A normal count was 20 million,
this changed to 15 million. Motility was 50%, now its 40%. The normal
morphology had the biggest change, as it went from 15% to 4%.
Keep in mind that in this group, all of these men were fertile, so even men with
levels lower than the new definition of normal had working sperm. The normal
values were established mathematically. If you were in the upper 95% of the
fertile people you were deemed normal. The bottom 5% of the fertile people was
deemed abnormal. This 95%/5% cutoff is the system used to define cut offs for
other tests such as TSH, Prolactin and many others.
When comparing the different groups of men there were very slight differences in
volume, count, etc, but hardly worth mentioning. Fertile men did have slightly
higher volume and counts then men whose fertility status was unknown. Morphology
was mostly similar in the different groups. Remember, there was no group of men
who had established infertility, so in this study there is no way to compare
normal fertile men to known infertile men.
And even though we have no details on the women, knowing that they became
pregnant in the past year is probably all the information we need.
So now you know. Any morphology over 3% is considered normal. If your doctor
tells you otherwise, ask him if he has seen the new WHO guidelines.
To take it one step farther, can there really be difference between 4% and 2%? I
doubt that there is a difference between having 96% abnormally shaped sperm and
98% abnormally shaped sperm. So as I have said before, at our practice here at
NYU, morphology is not considered with much respect, except in some rare cases
where the sperm is unusually abnormal.
I hope this helps.
For those of you who want more details, here is the link.
www.who.int/reproductivehealth/topics/infertility/cooper_et_al_hru.pdf
Dr. Licciardi
https://infertilityblog.blogspot.com/
ABOUT ME
DR. LICCIARDI
I have been practicing infertility at NYU for 17 years. Basic infertility,
reproductive surgery, ovulation induction, IVF, and egg donation are all areas
of my expertise. Most of my patients are from New York , but people come to see
me from other states and other countries. You can read all about me at my
website, DrLicciardi.com.