Hi Rosie,
The presence of enlarged and varicosed veins on the scrotum known as varicoceles is moderately common, and there is still a great deal of debate as to how much impact these have on sperm production, and how this happens. There are two theories about this. One is that the excessive blood supply through the swollen blood vessels to the area causes overheating of the testicle (or testicles, as they are often bilateral), and this overheating can reduce sperm production. The other explanation is that there is pooling of blood in these distorted veins which produces toxins that inhibit sperm production. The former explanation is most likely, and especially when it is a large varicocele.
How much impact they make depends upon how large they are, and if DH's is large then it is likely that one or other of the above factors could be actively reducing sperm production. If it is large enough for him to have felt regularly uncomfortable in his groin then it is large enough perhaps to have surgery on for this reason alone. Surgery these days is usually just a case of injecting a chemical which sets in the vein and blocks it, and this should not be a major trauma for him. The full benefits (if any) will not then be seen for 3-4 months, as with all treatments for sperm problems.
Alternatively if it really is not so large as to be a fertility problem as the urologist suggests, and not troubling him, DH should perhaps put his surgery on hold, and try to compensate for the overheating by doing other things to reduce the scrotal temperature, wearing shorts, avoiding long periods of exercise or sport (especially cycling, reducing the temperature of his bath or shower, splashing his bits with cold water, especially during the hot summer days, reducing weight, which keeps the testicles too confined to the body, light clothing and of course the boxer shorts. These combined can probably do as much as surgery will for small varicoceles.
Varicoceles (and probably other causes of overheating) rarely have a very large impact on the sperm output, unless they are large bilateral ones and surgery is done then as much for his comfort as for his fertility. They rarely make a man with a totally normal picture into a totally infertile man, but they can be a factor in reducing sperm production, and they can, for a man already having a problematic sperm picture, add in to this to reduce sperm count and quality even further. The fact that you conceived for years ago when you had irregular ovulation and extra weight, and yet cannot do so now when you would seem to be more fertile, suggests that something important may have changed. This may be in you, that despite your regular cycles these are not very good ovulatory ones, ie your mid-luteal progesterone is lower than ideal for good implantation, and this needs to be checked. Or it could mean that his sperm four years ago were not just adequate but better enough than average in terms of number and quality, to get you pregnant despite your own obvious fertility problems, but that now the sperm picture has deteriorated to the point where you are needing major help to conceive. Unless you can identify any other factors which might have caused this deterioration, then it is reasonable to suspect that this is perhaps due to the increasing presence of his variocele.
I obviously cannot comment too greatly on the accuracy of the urologist's opinion, especially so as I am not a urologist nor a surgeon. It is true that not always does varicocele treatment improve fertility even when one expects it to, but there is certainly evidence to suggest that there is no exact and consistant correlation between varicocele size and sperm improvement and surprising results can be obtained at times. The urologist may very well be correct in his assessment, or he may have been looking at your husband solely as a man with a current problem and not taking into account your very significant pregnancy history. It might be useful to speak again to this consultant and see whether he would revise his opinion, and if not seek another opinion, perhaps from a more fertility aware urologist recommended by a fertility unit or gynaecologist or your GP.
I would suggest that you follow this up this for the various reasons I have given above.
Good luck
P.
This post has been edited 1 times, last edit by "Paul Entwistle" (Jul 1st 2011, 12:03am)