Sperm that were immobile became active after just 20 seconds of ultrasound exposure in a lab experiment that may help boost the success of fertility treatment.
Exposing immobile sperm to ultrasound waves gets them moving, a lab study has shown. Sperm that don’t move properly are a key cause of infertility, as it is harder for them to reach the egg. With further research, this technique could help improve the success rate of in vitro fertilisation (IVF).
Previous research has suggested that high-frequency ultrasound increases the motility of sperm. However, this work didn’t involve isolating the sperm to assess which individual cells benefited, which could then point doctors towards the optimal ones to use in fertility treatments.
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