World Hemophilia Day – April 17

World Hemophilia Day - April 17

World Hemophilia Day will focus on encouraging the global bleeding disorders community to Speak out. Create change. This year we are making a particular effort to reach out to young members of the community so as to promote their participation and to develop strong leadership. We want our young members to feel inspired to assume key roles in building and supporting the bleeding disorders community. Every year World Hemophilia Day observed on April 17.



Hemophilia is a group of inherited blood disorders in which the blood does not clot properly. Hemophilia is the standard international spelling, also known as haemophilia in the UK, other translations include: hémophilie, hemofilie, hemofili, hemofilia, hämophilie, emofilia. We will use the standard international spelling for the purpose of this section.

Bleeding disorders are due to defects in the blood vessels, the coagulation mechanism, or the blood platelets. An affected individual may bleed spontaneously or for longer than a healthy person after injury or surgery.

The blood coagulation mechanism is a process which transforms the blood from a liquid into a solid, and involves several different clotting factors. The mechanism generates fibrin when it is activated, which together with the platelet plug, stops the bleeding.

When coagulation factors are missing or deficient the blood does not clot properly and bleeding continues.

Patients with Hemophilia A or B have a genetic defect which results in a deficiency in one of the blood clotting factors.

Queen Victoria was a carrier and passed the mutation to her son Leopold, and through several of her daughters to members of the royal families of Spain, Russia, and Germany.

Tsarevich Alexei Nikolaevich, son of Nicholas II (Russia) suffered from hemophilia and was a descendant of Queen Victoria – Rasputin was successful in treating his hemophilia, it was claimed.

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