Azoospermia

Azoospermia is the medical condition of a man whose semen contains no sperm. It is associated with male infertility, but many forms are amenable to medical treatment. It affects about 1 percent of the male population and may be seen in up to 20 percent of male infertility situations in Canada. It is classified into three major types: pretesticular, testicular and post-testicular. Pretesticular and testicular azoospermia are known as non-obstructive azoospermia, while post-testicular azoospermia is considered obstructive. In a non-pathological context, azoospermia is also the intended result of a vasectomy.