Genetics service

Diagnosing and assessing the risk of inheriting a genetic condition

ChromosomesOur service

Our clinical genetics service serves over five million people. Our genetics team works together to offer accurate information and support.

Regional genetics clinics offer services to diagnose and assess the risk of you or your family inheriting a genetic condition. It is not always possible to make a specific diagnosis for a family or child, however, a genetic assessment will help you to understand the possible diagnoses and treatment options.

Genetic counselling

Because diagnosis and testing will often have an impact on the wider family, the genetic counselling process includes an explanation and risk assessment with any available options for family members.

It may take time to adjust to new diagnoses and to decide on the best possible course of action. Our team will provide up-to-date and unbiased information. We suggest asking for an update when the affected person and family members reach reproductive age, and before a new pregnancy. Testing, risk-reducing treatment and research options change over time.

Commitment to research

The genetics clinic is part of the Division of Medical and Molecular Genetics at King’s College London. Our team are committed to genetic research and academic excellence.

100,000 Genomes project

The South London Genomic Medicine Centre (GMC), hosted by Guy’s and St Thomas’, was one of the centres taking part in the 100,000 Genomes Project.

The national programme focused on both cancer and rare diseases and pioneered research to decode 100,000 human genomes, a scale not seen anywhere else in the world.

Find out how Guy's and St Thomas' was involved in the 100,000 Genomes Project.


Prenatal genetics course

We are running a three-day, skills-based course from Wednesday 4 March to Friday 6 March 2020 exploring the application of genetics and genomics in a prenatal setting.

It is aimed at midwives and other health professionals working in prenatal testing but with little training in genetics tools.

Topics covered include:

  • obtaining a family history
  • identifying high-risk family histories
  • approaches to genetic testing
  • consent taking and counselling skills associated with providing information and results.

You can download the timetable for the prenatal genetics course (PDF 342Kb). For more information and how to book, see the prenatal genetics course flyer (PDF 186Kb).

Genetic counselling experience

Due to the high volume of requests, we are unable to offer shadowing or work experience within the genetic counselling team.

For individuals interested in a career in genetic counselling, we offer a half-day of talks about various aspects of the profession and the day-to-day life of a genetic counsellor at Guy’s clinical genetics. If you would like to be informed about the next available day, please contact the coordinator to register your interest ( A small monetary contribution may be required to secure your place.


Genetics clinic
7th floor, Borough Wing
Guy's Hospital
Great Maze Pond
London SE1 9RT

Tel: 020 7188 1364
Email: gst-tr.geneticsreferrals

Borough Wing 

Download Borough Wing, 7th floor map (PDF 35Kb)

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