AI-Powered Sperm Recovery Method Leads to Frist Successful Pregnancy, Columbia Researchers Announce
NEW YORK, NY – In a breakthrough for men facing infertility, researchers at Columbia University Irving Medical Center have announced the first successful pregnancy achieved using their novel AI-guided sperm recovery method, dubbed STAR (Sperm Tracking and Recovery). The technology offers new hope for individuals diagnosed with azoospermia – the absence of sperm in ejaculate – who have previously faced limited options for starting a family.
The findings, published in The Lancet, detail how the STAR method successfully identified and retrieved viable sperm from a patient who had spent nearly two decades attempting to conceive, including multiple unsuccessful IVF cycles, manual sperm searches, and surgical sperm extraction procedures.
“You only need one healthy sperm to create an embryo,” explained Dr. Evan Williams, senior author of the study and Director of the Columbia University Fertility Center.
The STAR method combines high-powered imaging, artificial intelligence, and microfluidics to locate and isolate rare sperm cells within a semen sample. The system scans the sample, capturing over 8 million images in under an hour. AI algorithms then identify potential sperm cells, which are afterward isolated using a microfluidic chip containing tiny channels. A robotic arm then gently removes the sperm for use in embryo creation or cryopreservation.
In the reported case, STAR analyzed a 3.5 mL semen sample, identifying two viable sperm cells within approximately two hours. These cells were used to create two embryos, resulting in a successful pregnancy.
“the field has really been challenged to find a better way to identify and retrieve viable sperm cells in men with exceedingly low sperm counts,” Dr. Williams stated.
The development of STAR was a collaborative effort, bringing together experts in advanced imaging, microfluidics, and reproductive endocrinology. “Our team included experts…to tackle each individual step required to find and isolate rare sperm,” said Hemant Suryawanshi,assistant professor of reproductive sciences at Columbia University Vagelos College of Physicians and Surgeons and project leader.
While the initial results are based on a single case, researchers are optimistic about the potential of STAR to overcome significant hurdles in male infertility treatment. Larger clinical studies are currently underway to evaluate the efficacy of the technology in a broader patient population.
The research was supported by Columbia University Irving Medical Center.further details can be found in the published study: Suryawanshi, H., et al. (2025). First clinical pregnancy following AI-based microfluidic sperm detection and recovery in non-obstructive azoospermia.The Lancet. doi.org/10.1016/S0140-6736(25)01623-X01623-X)
