undetected infection

Azoospermia and infertility

Dear Professor Winston I suffer from azoospermia. My wife and I underwent a successful fertility ICSI cycle using sperm retrieved surgically, for which we are very grateful. I had this done twice, both times sperm being found, as the first cycle failed. No-one has ever sought to investigate the cause of my azoospermia. I had blood tests and a physical examination and

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