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It is true to say that varicocele
, as it increases the local temperature of testes, may affect sperm production and surgery of varicocele is very commonly offered in subfertility. But in your case, it is better to rule out any other cause of infertility
in your spose and yourself as a 10 million count of sperm with a normal motily is OK for a fertility and many times even after surgery if fertility is not ensured, it may require IVF. Also, a subclinical varicocele or a grade 1 varicocele is more like to be just incidentally related to low sperms rather than having a cause and effect relationship. The only other indication of surgery is a pain due to which you are mentally and physically suffering in your daily routine and which is not subsiding with scrotal support and occasional analgesics. The recurrence rate after surgery is pretty high as there are so many veins to recur. In short surgrey is not for a case like you. Also, even if there may be risk of increase in size of varicocele with time, surgery now or later is exactly the same.
Relax, take care