The Witness System is a modern safety technology used in IVF laboratories to ensure accuracy, traceability, and minimize the risk of biological mix-ups during treatment. Widely adopted in developed countries, this system uses electronic identification to track gametes and embryos throughout every step of the IVF process, significantly reducing errors and improving patient confidence.
Without a Witness System, IVF labs rely solely on manual checks, which increases the risk of mismatched samples. Such errors, though rare, can result in legal and ethical complications, emotional distress for patients, and loss of trust in the IVF process. The system ensures identity checks are never missed and that only one patient’s materials are handled at a time.
The system uses very low-level radio waves to track every instance when gametes or embryos are moved between containers. It ensures continuous monitoring and electronic identity checks throughout the treatment cycle. This prevents accidental mix-ups and maintains a secure chain of custody from start to finish.
Although biological sample mix-ups in IVF are rare, they have been documented. To further reduce these risks, some clinics conduct patient questionnaires (using tools such as a 6-point Likert scale) to measure confidence in the Witness System before and after learning about potential mismatches. The technology not only improves safety but also reassures patients about the integrity of their treatment.