World Thrombosis Day
International Society on Thrombosis and Haemostasis (ISTH)
Date and recurrence
13 October
This authority record treats the observance as a fixed annual date. The same month and day can be reused unless a stronger source changes the rule.
Scope and status
The verified scope stored for this record is Organizer-backed international observance. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Health Information Not Medical Advice.
Sources
- ISTH — World Thrombosis DayOrganizer Authoritative Page
Frequently asked questions
When is World Thrombosis Day?
13 October The stored recurrence guidance is: 13 October.
Does World Thrombosis Day fall on the same date every year?
The authority record classifies it as fixed annual, so its month and day are reusable unless stronger evidence changes the rule.
Is World Thrombosis Day an official public holiday?
The authority record verifies it within this scope: Organizer-backed international observance. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.
Who established or recognizes World Thrombosis Day?
The stored designation basis is: International Society on Thrombosis and Haemostasis (ISTH). Supporting provenance includes ISTH — World Thrombosis Day. The site does not infer a separate creator or founder unless reviewed evidence establishes one.
Is World Thrombosis Day international or country-specific?
The record has international or global institutional scope: Organizer-backed international observance. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-05.
Other observances on October 13
These records also resolve to October 13, 2026 under the current authority data.
Commemoration of the Assassination of Prince Louis Rwagasore
Ministry of Foreign Affairs, Republic of Burundi
Herpes Awareness Day
National Today places Herpes Awareness Day on October 13 annually, and AnydayGuide independently lists National Herpes Awareness Day on October 13.
International Civility for the Girl Child Day
National Day Archives identifies October 13 and names Louisa Akaiso as the 2020 creator; EventGuide independently lists the observance every October 13.
International Day for Disaster Risk Reduction
A/RES/64/200
National Transfer Money to Your Son Day
National Today and Awareness Days independently place National Transfer Money to Your Son Day on October 13.
U.S. Navy Birthday
Naval History and Heritage Command identifies 13 October as the date celebrated as the U.S. Navy’s birthday.