Columbia University Irving Medical Center Oct 31 2025 Researchers at the Columbia University Fertility Center reported the first successful pregnancy using an AI-guided method they developed to recover sperm in men with azoospermia, in which ejaculate contains little or no sperm.  The case is described in a research letter published in The Lancet .  Male factors account for approximately 40% of couples with infertility. Of those, about 10-15% of men with infertility have azoospermia.  A semen