Clinical Genetics information for families and health professionals

Child with DNA

Welcome to the homepage of the Clinical Genetics department at Great Ormond Street Hospital.

These pages provide information about our Clinical Genetics service. You can also find videos, patient information leaflets and useful links to resources providing additional support for those affected by rare diseases and genetic conditions.

Information for health professionals is also provided including how to refer a patient, the conditions seen by Clinical Genetics, and how to request genetic tests using the National Genomic Test Directory.

About us

Further information about the Clinical Genetics department.

Conditions we treat

Discover more about the conditions we treat and conditions we do not see, where care is best managed by other specialists. See below to find out how genetics tests can be requested by doctors outside of Clinical Genetics.


Find out more about the clinics we run in London and the surrounding region.

Meet the team

View our staff list to find our more about the people in our team.


Find out about our involvement in Clinical Genetics research.

Contact us

Details on how to contact the department.

Arranging Genetic tests outside of Clinical Genetics

Testing for many genetic conditions can be arranged by the local care team without the need for a clinical genetics appointment.

Genetic testing in England is arranged and funded centrally through the NHS Genomic Medicine Service, ensuring equity of access.

For information about genetic tests, who can request them and patient eligibility criteria, please see the National Genomic Test Directory.

Genetic testing is undertaken by the North Thames Genomic Laboratory Hub. Detailed guidance and instructions on arranging tests is provided on their website, along with Genetic Test Request forms that can be downloaded for use.

Consent: Please be aware that patient consent should always be obtained before requesting a genetic test. Further guidance regarding consent for genetic testing is available from the Royal College of Physicians.

Consent is not required for storage of a DNA sample.