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Pre-implantation genetic diagnosis

Published on 21 April 2022

The Scottish Pre-implantation Genetic Diagnosis (PGD) Service is for couples at risk of passing on an inherited disorder. It can significantly decrease the risk of having a child affected by a genetic condition.

NHS Greater Glasgow and Clyde (GG&C) and NHS Lothian provide the service. PGD treatment is for residents of Scotland who meet the eligibility criteria for referral. These are in the current Framework for Decision Making for the Scottish PGD service.

What is pre-implantation genetic diagnosis?

PGD testing is a technique used in reproductive medicine. Experts can identify genetic defects in embryos created through in vitro fertilisation (IVF).

PGD is offered when one or both genetic parents have, or are carriers of, a known genetic abnormality. Testing of the couples' embryos takes place to determine whether an embryo is at risk of a genetic disease.

Only embryos with a low genetic risk for the condition are then transferred back to the woman’s uterus. Any resulting pregnancy should be unaffected by the condition for which the diagnosis is performed.

Find further specific information about the Scottish PGD service on the following website:

Lead clinicians

Dr Rosemarie Davidson, NHS Greater Glasgow and Clyde

Professor Mary Porteous, NHS Lothian


Ground Floor
Queen Elizabeth Building
Glasgow Royal Infirmary
Alexandra Parade
G31 2ER

Edinburgh Fertility & Reproductive Endocrine Centre
Royal Infirmary of Edinburgh
51 Little France Crescent
EH16 4SA

NSD contact

NSD Specialist Services

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