Fertility Associates is reassuring patients their processes are robust, after frozen embryos went missing last year while in its care.

It says this only involved one couple, that was treated at its Auckland clinic in 2025.

An audit done by an independent international lab expert has found its storage processes are secure - but it's now moving storage to a new, designated area in the clinic.

Chief Medical Officer Andrew Murray says they perform around seven thousand egg retrievals or embryo transfers every year.

"There are a lot of moving parts in this, and so we want to reassure our patients that this is an isolated incident."

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