We faced a similar situation to this when we learned that my husband had testicular varicose veins and he had to do a sperm count test. He had some worries about doing the test. We visited a specialist in fertility (for we were trying to have a baby for two years) and he said that my husband suffered from testicular varicose veins. However, I must tell you that surgery isn't always positive and in some cases can make things worse.
Yet, it is possible to have babies. Your husband can do the sperm test at home and get the sample to the laboratory within an hour. Get details from you GP It's worth a try!