Azoospermia should be diagnosed by an Andrology lab at a Fertility clinic or a Urology clinic. More than one semen analysis is needed to confirm the diagnosis. If we see a semen sample with no sperm we use a centrifuge to ‘spin down’ the specimen so that we can find very low numbers of sperm. See a Fertility MD (Reproductive Endocrinology and Infertility or REI) for a complete Semen Analysis test. Even if you have a microscope at home I don’t recommend home testing for this condition.