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Patient Information

Know Your Clot Risk
Hospital risk factors for blood clots
Cancer related risk factors for blood clots
Early Pregnancy Blood Clot Risk Assessment Tool
Pregnancy risk factors for blood clots
Hormone therapies risk factors for blood clots

Understanding Blood Clots
Booklets & Fact Sheets
Patient Information Videos

Coping With Worry After A Clot

We’ve created a space to address anxiety and questions after a VTE diagnosis.

Self Advocacy

Self advocacy empowers people with Venous Thromboembolism (VTE) to take an active role in their care.

Patient Support Meetings

Join a supportive community to share experiences and receive encouragement.

Let's Talk Clots App

The app offers info on blood clots, risk reduction, symptoms, diagnosis, treatments, and recovery support.

Shared Accounts

Shared experiences from those affected offer support and raise awareness.

Educational Events

Join a compassionate community to connect, share experiences, and receive support.

Get Involved

See how you can get involved in our community through fundraising, volunteering, and much more.

Pregnancy Campaign

Pregnancy Campaign

Know the Signs: Blood Clot Risk in Pregnancy and Beyond
For health Professionals

Why VTE Matters

Find out about why VTE matters

Accredited Training & Resources
VTE E-Learning Platform
National Thrombosis Week Conference 2026
Educational Events
VTE Risk Assessment Tools
Patient Resources
Training and Learning Resources

VTE Guidelines & Publications

Guidelines and publications to educate on VTE

Research Opportunity & Updates
VTE Research Opportunities
Research Grants
Research Films

Network Support

Promoting knowledge-sharing, professional development, and collaboration among UK medical experts.

Early Pregnancy Blood Clot Risk-Assessment Tool

In consultation with NHS England, this questionnaire addresses VTE, the leading cause of pregnancy death.
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About Thrombosis UK

Mission

Learn about why we do what we do

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Find out more about our history

Our team

Learn about our team

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See our annual reports

What Your Support Helps Us To Achieve

See what you have helped us achieve over the years and what’s to come!

Partnerships

Find out more about your partnerships

National Thrombosis Week

National Thrombosis Week is Thrombosis UK’s annual awareness week, when we bring together patients and health care professionals.

Thrombosis UK VTE Awards

The VTE Awards celebrate pioneers excelling in VTE prevention, management, and patient care.

World Thrombosis Day

TBC

VTE RESEARCH
OPPORTUNITIES

Seeking to join, support, develop or share a research project?

Please select one of the following for opportunities which may be of interest.

Diagnostic Algorithms in Venous ThromboEmbolism

We are planning an observational cohort study across >100 emergency departments to evaluate how people evaluate and investigate patients with suspected thrombosis. We will be collecting clinical and blood test data, with no changes to routine care, to evaluate and compare multiple different diagnostic strategies used across the world.

 

One of our aims is to identify which diagnostic strategy has the best safety and effectiveness profile – in short, what strategy, when applied universally, would offer appropriate levels of safety but would help avoid unnecessary treatments or invasive tests. We will then design a future trial looking to compare the best potential strategy against the current standard of care as recommended by the National Institute for Health and Care Excellence (NICE).

 

We would like our PPI group to input into the design of this future trial also, by providing opinion on the best consent and recruitment process, the best method of follow up, the selection of appropriate clinical outcomes and ongoing supervision of trial delivery, if funded. 

Email
See all details

UK Thrombosis Research Network (UK-TReN)

UK Thrombosis Research Network (UK-TReN) is an informal, clinician led network of healthcare professionals with an interest in thrombosis research.

Aims

  • To create a multi-disciplinary network of individuals interested in or actively pursuing thrombosis research.
  • To increase the number of CRN portfolio adopted studies pertaining to thrombosis.
  • To increase clinician/scientist collaboration in thrombosis.
  • To join INVENT, thereby enhancing international collaboration.

Who can join?

Anyone who is interested in thrombosis research!

All allied health professionals, doctors, midwives, nurses, and scientists are welcome.

What are the benefits of joining?

  • Ease of access to research-active multi-disciplinary collaborators nationally
  • Cross-fertilisation between basic scientists and clinicians
  • Influence the future direction of UK-TReN as it forms
  • Future access to INVENT benefits (if application successful) https://www.invent-vte.com/
    • access to funding opportunities (Dragons’ Den Competition; Kickstarter Awards, ISTH-INVENT Fellowship Awards) and resources
    • Training/networking opportunities for HaemSTAR/other registrar groups
    • participate in network collaborations, projects, and educational seminars
    • participate in networking events
    • Voting on INVENT Council with international key opinion leaders to help foster international collaboration in clinical VTE research (2 Council members/country)

How can I be more involved?

Watch presentations from Prof Simon Noble and Prof Dan Horner, given at the inaugural UK-TReN meeting held on 28th March 2023, and find out how you can become involved and part.

See all details

HaemSTAR

HaemSTAR is an independent UK-wide network of registrars in clinical haematology, interested in promoting and performing research in classical haematology. Our focus is on collaborative projects across haemostasis & thrombosis, transfusion, general haematology, and obstetric haematology.

Find out more
See all details

INVENT-VTE

INVENT-VTE seeks to improve the care of patients affected by venous thromboembolism (VTE) around the world through the fostering of international collaboration in design, development, conduct and promotion of high-quality clinical research into the causes, prevention, diagnosis and optimal management of VTE.

Find out more
See all details

Become involved through participation with UK and international research projects.

PETS Trial

Examining the benefit of graduated compression stockings in the Prevention of vEnous Thromboembolism in low-risk Surgical patients: a multicentre cluster

randomised controlled trial (PETS Trial) 

This study aims to evaluate the potential benefit of Graduated Compression Stockings (GCS) in the prevention of Venous Thromboembolism (VTE) in patients undergoing short-stay surgical procedures, assessed as being at low-risk for VTE.

See all details

THRomboprophylaxis in Individuals undergoing superficial endoVEnous treatment (THRIVE):

THRomboprophylaxis in Individuals undergoing superficial endoVEnous treatment (THRIVE): is a multi-centre, assessor-blind, randomised controlled trial to establish whether in patients undergoing endovenous varicose vein procedures:

  1. A single dose of pharmacological thromboprophylaxis decreases the risk of VTE
  2. An extended course of pharmacological thromboprophylaxis decreases the risk of VTE
  3. Pharmacological thromboprophylaxis is associated with an increased rate of bleeding events
  4. Providing pharmacological prophylaxis is cost-effective
  5. There is a signal to suggest the pharmacological agent used affects the rate of VTE
Read full details
See all details

The GRACE trial

The GRACE trial aims to evaluate the potential benefit of Graduated Compression Stockings (GCS) in addition to extended duration pharmacological thromboprophylaxis (EDPTP) for surgical patients at highest risk of venous thromboembolism (VTE).

View full details
See all details

Thromboprophylaxis in Lower Limb Immobilisation (TiLLI):

A study comprising two linked randomised controlled trials evaluating the effectiveness and cost effectiveness of different methods of pharmacological prophylaxis for patients with temporary lower limb immobilisation.

Read more and see how you can become involved.
See all details

Yellow card Biobank scheme

The biobank is a two-year collaborative pilot study between the Medicines and Healthcare products Regulatory Agency (MHRA) and Genomics England.

 

Today, side effects account for 1 in 6 hospital admissions, placing burden on both patients and services.

The aim of the study is to improve understanding of how a patient’s genetics may increase their risk of harm from adverse drug reactions. It is hoped findings will lead to improved public health outcomes. 

The pilot study is focussed on two topics:  

1.         Allopurinol induced severe cutaneous adverse reactions (SCARs) including Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) 

2.         Direct oral anticoagulants (DOACs) and severe bleeding 

 

How You Can Help 

You can support by: 

  • Sharing Yellow Card Biobank content through your public mailing lists or other communication channels. 
  • Interacting with/sharing our social media posts to reach a wider audience. 

Our main objective is to raise awareness about the Yellow Card Biobank and encourage patients to complete a Yellow Card report, which is crucial to our recruitment efforts.

For further information, please contact

[email protected]; [email protected]; [email protected]; [email protected]

Due to close mid March (extension request under review)

See all details

Research News

Hormone Therapy and Blood Clot Risk: What Recent Research Reveals for Menopausal Women
April 2026
This study examined the risk of venous thromboembolism (VTE) in peri- and postmenopausal women receiving hormone replacement therapy (HRT) with transdermal …
Find Out More
MPV-SVT Matters
April 2026
An information and support resource for people affected by this rare and complex condition. Created by people with MPV-SVT and NHS professionals, in partner …
Find Out More
BLOOD CLOT RISK-ASSESSMENT QUESTIONNAIRE for use by women in early pregnancy
January 2026
Thrombosis UK is delighted to be partnering with NHS England to improve the prevention of blood clots in early pregnancy. This questionnaire is designed to …
Find Out More
Same-day emergency care: a retrospective observational study of the incidence and predictors of venous thromboembolism following hospital-based acute ambulatory medical care
July 2025
A recent observational study of over 40,000 same-day emergency care (SDEC) attendances found that nearly 1 in 100 patients developed a venous thromboembolis …
Find Out More
NIHR: Understanding mechanisms of thrombosis and thrombocytopenia with adenoviral SARS-CoV-2 vaccines: a comprehensive synopsis
July 2025
A major review has drawn together the latest evidence on how very rare cases of clotting combined with low platelets — known as vaccine-induced immune throm …
Find Out More
Global survey seeking your response
June 2025
An international research team invites patients, clinicians and researchers to complete a brief online survey for the VTE-COS project, which aims to establi …
Find Out More
Mental health inpatient settings:
May 2025
The HSSIB’s overarching report on mental health inpatient care reveals that safety failings remain systemic — from weak investigation processes and delayed …
Find Out More
HSSIB publishes report on missed dosing of anticoagulation
May 2025
A recent Health Services Safety Investigations Body (HSSIB) investigation highlights how lapses in managing anticoagulant medication around a procedure can …
Find Out More
JTH launches new educational review series
March 2025
The Journal of Thrombosis and Haemostasis (JTH) has launched a new series designed to provide a foundational understanding of essential topics in the field …
Find Out More
Seeking patients with experience of thrombosis in pregnancy
January 2025
A PhD student is conducting a study on the treatment of blood clots during and up to six weeks after pregnancy. The study is seeking to involve individuals …
The changing face of cerebral venous sinus thrombosis—emerging new causes & treatments
November 2024
Explore how cerebral venous sinus thrombosis is evolving, with new causes and treatments shaping patient care and research insights.
Find Out More
HSSIB report: Mental health inpatient settings: Creating conditions for the delivery of safe and therapeutic care to adults
November 2024
The investigation identified incidents where physical health monitoring had not prevented harm including: 'where patients had developed blood clots con …
Find Out More
Animal-derived medicinal products
November 2024
Community representatives’ views of their use. Published in Future Healthcare Journal 2023 Vol 10, No 3: 291–5 
Find Out More
Know Your Clot Risk With Explanation Mark Alongside This
Factoring patients’ beliefs and values into decisions around anticoagulation
November 2024
A community-led multi-cycle quality improvement project. Published in Future Healthcare Journal 2023 Vol 10, No 3: 301–5.
Find Out More
Blood cancer patients point way to better care
October 2024
First study of its kind investigates the experiences of individuals with MPN-SVT and the healthcare professionals who care for them.
Find Out More
Qualitative study of the consequences of vaccine-induced immune thrombocytopenia and thrombosis: the experiences of family members
June 2024
Paul Bennett1, Filiz Celik2, Jenna Winstanley3, Beverley J Hunt4, Sue Pavord5
Find Out More
Living with vaccine-induced immune thrombocytopenia and thrombosis: a qualitative study
June 2024
Paul Bennett; Filiz Celik; Jenna Winstanley; Beverley J Hunt; Sue Pavord.
Find Out More
Coroner advises NHS England to warn prescribers about interaction of tramadol and warfarin
June 2024
Find Out More
What influences women’s decisions to participate in trials for prevention of venous thromboembolism during pregnancy and the puerperium
June 2024
A qualitative study
Find Out More
Risk assessment models for venous thromboembolism in pregnancy and in the puerperium
June 2024
A systematic review Abdullah Pandor1, Jahnavi Daru2, Beverley J Hunt3, Gill Rooney4, Jean Hamilton4, Mark Clowes4, Steve Goodacre4, Catherine Nelson-Piercy3 …
Find Out More
Thromboprophylaxis during pregnancy and the puerperium
June 2024
A systematic review and economic evaluation to estimate the value of future research
Find Out More
European expert consensus recommendations on the primary care use of direct oral anticoagulants in patients with venous thromboembolism
June 2024
Patrice, Carter; Ahmet, Fuat; Sylvia, Haas; Elizabeth, Smyth; Carlos, Brotons
Find Out More
Who dies from venous thromboembolism after hospitalisation for other reasons in England?:
June 2024
A national retrospective cohort study
Find Out More
Aging linked to “short cut” hyperreactive platelets
June 2024
Researchers have identified platelets that are generated in ageing bodies and may help explain why blood cells beome more prone to clotting with age.
Find Out More
Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award deep vein thrombosis (DVT) pathway award for leading to improved timely diagnosis of thrombosis
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award for an excellent Quality Improvement programme that advanced practice in thrombosis prevention or management.
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award for outstanding patient resource, sharing information. about VTE prevention for patients and carers
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award for Enhancing Patient Experience
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award for advancing awareness and information sharing of cancer acquired thrombosis (CAT)
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

Thrombosis UK VTE Awards
Application form

Applications are accepted on the basis that Thrombosis UK can share the content with external judges who will assist us with assessments. Service models, resources and working processes of successful Thrombosis UK VTE Award winners will be uploaded to the Thrombosis UK website and shared via publications, social media, and other opportunities.

When completing your application form, you should use lay language and answer each question in a concise manner. 

Please keep to any word limits given.

All sections need to be completed, if any section is removed, omitted or incomplete, we cannot process the application.

Applications need to be submitted via email to: [email protected] You will receive a notification of receipt within 48 hours of submission. If you do not receive a notification, please email [email protected]

The closing date for applications is 1st February 2025

We are unable to consider late applications.

Category
Thrombosis UK Award for work in VTE Prevention
Please note there is a separate application form for each category.
DATA PROTECTION

Thrombosis UK has a strict data protection policy that complies with UK data protection law.

Your name and contact details may be stored for up to 12 months in order for correspondence relating to your application be appropriately processed.

 

We wish to make you aware that your name and contact details, as included on your completed application form, will be viewed by the Thrombosis UK appointed Judging Panel solely for the purpose of reviewing and assessing your completed application.  If your nomination is short listed, a representative from Thrombosis UK will then seek your permission to include your name on the summary paragraph included in the awards brochure and on the Thrombosis UK website.

Thrombosis UK takes security and confidentiality very seriously. Your name and contact details will never be passed or shared with any third party or an unauthorised individual. If you have any queries, please contact: [email protected]

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