Implantation Support and Uterine Receptivity

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Successful IVF depends on both embryo quality and endometrial receptivity at the time of embryo transfer. Reduced uterine blood flow, impaired endometrial development, and altered cellular metabolism are recognised contributors to implantation failure.

A single-blinded randomised clinical trial in women with recurrent implantation failure undergoing IVF investigated transabdominal photobiomodulation and reported higher biochemical and clinical pregnancy rates in the treatment group compared with controls, although results were limited by small sample size.

The authors concluded that photobiomodulation demonstrated biological plausibility and supported the need for larger, well-designed IVF studies.

Clinical Case Series Using the GigaLaser with Anne-Marie Jensen

A published clinical case series led by Anne-Marie Jensen examined the use of structured red and near-infrared photobiomodulation protocols in women with complex or treatment-resistant infertility.

In this series, photobiomodulation was delivered using high-coverage laser systems, including the GigaLaser, which is designed to deliver red and near-infrared wavelengths across the pelvic region.

The reported cases involved women with long-standing infertility histories and previous ART failures. Following the integration of photobiomodulation alongside conventional fertility care, the series documented clinical pregnancies and live births.

Donor Egg IVF and the Endometrial Environment

In donor egg IVF, embryo quality is typically high, and implantation success is largely dependent on uterine receptivity. Thin endometrium, impaired blood flow, and altered endometrial metabolism are common clinical challenges.

Early observational fertility studies using multi-wavelength red and near-infrared photobiomodulation have reported improved reproductive outcomes in women with previous implantation failure despite good-quality embryos.

While these findings are preliminary, they suggest that photobiomodulation may influence uterine physiology in ways that support implantation, warranting further controlled investigation.

Sperm Motility and Function

In vitro research has shown that red light laser exposure can improve sperm motility and metabolic activity.

A controlled laboratory study demonstrated that exposure to 650 nm red laser light significantly increased progressive sperm motility compared with untreated samples.

A systematic review examining photobiomodulation in male infertility reported consistent improvements in sperm motility and mitochondrial activity across multiple studies.

These findings suggest a potential supportive role for photobiomodulation in relation to sperm quality, although effects on clinical pregnancy outcomes following IUI remain to be established.