Factor IX (Christmas Factor)

Factor IX, also known as Christmas Factor, is a protein in the blood that helps blood clot properly. It's part of the process that stops bleeding when you're injured. People with a deficiency of Factor IX, often due to hemophilia B, may bleed longer or more heavily because their blood doesn't clot as efficiently. Treatment usually involves replacing the missing Factor IX through infusions. Maintaining adequate levels can help prevent and control bleeding episodes, enabling individuals to lead active lives with proper medical care.