GUMCAD STI Surveillance System

GUMCAD is the surveillance system for sexually transmitted infections (STIs) in England.


GUMCAD is the mandatory surveillance system for STIs and collects data on all STI tests and diagnoses from all commissioned sexual health services in England. It is an electronic, pseudo-anonymised patient-level dataset reported by over 500 services.

Public Health England (PHE) co-ordinates and manages quarterly data collection, processing, storage and analysis of GUMCAD data on behalf of the Department of Health and Social Care (DHSC).

Data are:

  • reported quarterly to service providers and local authority commissioners
  • published annually as official statistics
  • used for the chlamydia detection rate (1 of only 3 sexual health indicators on DHSC’s Public Health Outcomes Framework)

All commissioned specialist (level 3) and non-specialist (level 2) sexual health services have a mandatory obligation to complete and return GUMCAD to PHE. The guidance documents below provide details on the completion, extraction and transmission of the dataset to the GUMCAD team at PHE.

Further details on the development of GUMCAD are provided in this article in Eurosurveillance. Details on the levels of sexual health service provision are provided in appendix B of the Standards for the Management of STIs (British Association for Sexual Health and HIV/Medical Foundation for HIV and Sexual Health).


GUMCAD: starter pack

GUMCAD: guidance for clinical staff

GUMCAD: frequently asked question

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Accessing GUMCADv2 data

The principles for accessing, storing and sharing GUMCAD data are given in the PHE’s HIV and STI data sharing policy. The data are accessible through:

  • STI annual report, infographic, slide set and data tables on the PHE website. These present data on diagnoses of STIs and related service provision at national and regional levels.
  • restricted-access web-reports. These interactive reports can be used for monitoring local, regional and national sexual health priorities. The reports are available on the HIV & STI web portal and are restricted for use by nominated local government and NHS organisations
  • the Sexual and Reproductive Health Profiles. These use interactive mapping tools to present data on key sexual health information at Local Authority (upper and lower tier, including unitary authorities) and national levels
  • Local Authority STI and HIV Epidemiology Reports (LASERs). These reports describe STI and HIV epidemiology in local authorities to inform local Joint Strategic Needs Assessments so that commissioners can effectively target service provision. LASERs are released annually and are provided to sexual health commissioners and Directors of Public Health
  • clinic-specific reports. These reports describe data quality, and the demographics and epidemiology of STIs among people attending specific clinics. Reports are released annually and are provided to clinics that report GUMCAD data to PHE

Sexual and reproductive health activity dataset (SRHAD)

The Sexual and Reproductive Health Activity Data Set (SRHAD) mandates the collection of contraceptive activity data from sexual and reproductive health (SRH) services in a standardised data return. Additional SRH activities are also recorded. SRHAD came into effect on 1 April 2010 and replaced the aggregate KT31 Central Return, which was discontinued in March 2014. SRHAD is collected by NHS Digital and further details are available on the SRHAD website.

Contact information

For further information, including access permission, contact the GUMCAD helpdesk at

Published 19 December 2013
Last updated 2 April 2015 + show all updates
  1. Updated GUMCADv2 resources including: starter pack, clinical guidance, technical guidance and SHHPT look-up code.
  2. First published.