This July, we focus on raising awareness of Factor XIII (FXIII) deficiency, an extremely rare inherited bleeding disorder caused by a defect in the final stage of blood clot stabilisation.
Factor XIII deficiency occurs when coagulation factor XIII is absent or dysfunctional. Factor XIII plays a crucial role after a clot has formed by cross-linking fibrin strands, which strengthens and stabilises the clot. Without adequate FXIII activity, clots are fragile and can break down prematurely, leading to delayed or recurrent bleeding. The condition is usually inherited in an autosomal recessive manner, meaning both parents carry the altered gene.
FXIII deficiency is one of the rarest inherited coagulation disorders worldwide. Because routine clotting tests are often normal, diagnosis is frequently delayed, and access to specialised diagnostic expertise may be limited.
People living with factor XIII deficiency may experience delayed bleeding after injuries or surgery, poor wound healing, easy bruising, recurrent pregnancy loss, and in severe cases spontaneous or post-traumatic intracranial haemorrhage. Symptoms can range from mild to life-threatening and may not become apparent until significant bleeding occurs.
Due to its extreme rarity and distinctive clinical features, individuals with FXIII deficiency may face uncertainty around diagnosis, treatment options, and long-term management. Increasing awareness among healthcare professionals and the wider community is essential to support early recognition, timely diagnosis, and access to specialised care.
Raising awareness of factor XIII deficiency is a vital step toward improving diagnosis, advancing research, and ensuring better care and support for people living with extremely rare bleeding disorders.
If you are interested in learning more about the disorder:
Read more about it in our space dedicated to Factor XIII deficiency – here
Learn more about Factor XIII deficiency – here
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