To Treat or Not?
The recent Cochrane Database Systematic Review of eight randomised controlled trials on this topic suggests that there may be no improvement in fertility after treating a varicocele with a regular surgery, since the conventional surgery is performed in the left side and a network of new small unseen during surgery of venous bypasses were not treated. Thus, partial diagnosis led to partial treatment and consequently limited improvement in fertility.
However researches show that if the treatment is performed adequately, both sides by interventional radiology procedure or by microsurgery, sperm production can be restored even in men without sperm cells at all(azospermia).
A small prospective study (n=322) however, suggests that varicocele correction aimed at restoring fertility appears to be most appropriate for men whose infertility extends beyond 2 years.
Read more about this topic: Varicocele