白血球低會引起抵抗力下降，容易得傳染性疾病

一般原因是：

A low white blood cell count usually is caused by one of the following:

• Viral infections that temporarily disrupt bone marrow function 病毒感染暫時影響骨髓造血機能
• Congenital disorders characterized by diminished bone marrow function先天性骨髓功能異常
• Cancer or other diseases that damage bone marrow 癌症或其他疾病損傷了骨髓
• Autoimmune disorders that destroy white blood cells or bone marrow cells自體免疫性疾病攻擊白血球或骨髓
• Overwhelming infections that use up white blood cells faster than they can be produced大規模感染大量消耗白血球
• Drugs that destroy white blood cells or damage bone marrow藥物殺傷白血球或損傷骨髓

Specific causes of low white blood cell count include:特殊原因有

• Aplastic anemia 先天再生障礙貧血
  
• Certain medications, such as antibiotics and diuretics 某些藥物的影響，例如抗生素和利尿劑
• Chemotherapy化療
• HIV/AIDS艾滋病毒感染
• Hypersplenism, a premature destruction of blood cells by the spleen脾功能亢進
• Infectious diseases細菌感染
• Kostmann's syndrome, a congenital disorder involving low neutrophil production先天性中性粒細胞減少症
• Leukemia白血病
• Lupus紅斑狼瘡
• Malnutrition營養不良
• Myelodysplastic syndromes 骨髓增生異常綜合症
  
• Myelokathexis, a congenital disorder involving failure of neutrophils to enter the bloodstream 先天性骨髓粒細胞減少症
• Other autoimmune disorders 其他自體免疫異常
• Other congenital disorders 其他先天性疾病
• Parasitic diseases 寄生蟲病
• Radiation therapy 放療
• Vitamin deficiencies 維生素缺乏

所有跟帖： 

• 忘記寫了，這是Mayo上麵抄的，簡單翻譯了一下 -dudaan- ♂ (0 bytes) () 03/18/2013 postreply 17:36:52