Obstructive azoospermia refers to no sperm in a man's semen, as a result from problems with sperm delivery. Obstructive azoospermia accounts for around 40 percent of azoospermia cases. Most commonly, obstructive azoospermia results from previous vasectomy, but there are other causes.
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Male Infertility Articles
Male infertility is a lot more common than many believe. According to the American Society of Reproductive Medicine, infertility affects men and women equally.
If your female partner is under the age of 35 and you have been trying to conceive for one year, or is she is over 35 and you have been trying to conceive for six months, you and your partner should see a physician for a fertility “workup.”
Male factor infertility plays a role in about approximately half of all cases of infertility. To understand what might be causing a couple's infertility, the male partner should undergo a male fertility work-up with a semen analysis. Because a man's sperm count and semen consistency can vary from day to day — and some conditions can also have a temporary effect — a semen analysis to determine fertility should be performed on at least two samples, at least seven days apart over a period of two to three months.
Male Infertility Videos
Dr. Donald Evenson from SCSA Diagnostics discusses what sperm DNA fragmentation is and why it is necessary.