Hemophilia is a rare blood disorder, and people born with this condition have little or no clotting factor, a protein that controls bleeding.
血友病是一种罕见的血液疾病，遗传这种病的人极少或没有凝血因子，这些正是一种控制出血的蛋白质。
About one in ten-thousand people are born with this disease. After suffering injuries, they tend to bleed for longer periods of time than others, or bruise without obvious causes. This can damage organs, and may be life threatening. Hemophilia can be mild, moderate, or severe, depending on how much clotting factor is present in one's blood. Most of victims of this currently incurable condition are male.
约十分之一的人遗传到这种病。受伤后，他们比平常人流血的时间更长，或者更容易就擦伤。这会破坏器官，并威胁到生命的安全。血友病可以是轻微、温和的，或者是剧烈的，这是根据人体血液里凝血因子的多少而定。这种现在无法治愈的疾病的大部分受害者是男性。
The National Hemophilia Information Management Center says there are nearly 8,000 registered cases in China. The majority of people with the disease are able to lead normal lives, with regular care and treatment.
国家血友病信息管理中心说中国有接近8000例登记在案。患有该病的患者只要定期照顾和治疗，就可以过正常的生活。