Health encyclopaedia 健康百科全书

Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

Causes of Hay fever原因花粉症

Hay fever is an allergy to pollen.花粉症是一种过敏的花粉。 When pollen comes into contact with the cells that line the mouth, nose, eyes and throat, it irritates them.当花粉接触到与细胞线口，鼻，眼睛和喉咙，它会刺激他们。 If you’re allergic to pollen, your body thinks it is harmful, and produces a special type of antibody (IgE) to attack the pollen.如果youâ € ™重新过敏的花粉，你的身体认为这是有害的，并产生一种特殊类型的抗体（ IgE的）攻击的花粉。 This triggers the release of further chemicals, including histamine, which together cause the symptoms of an allergic reaction.这触发释放进一步的化学品，包括组胺，其中一起造成的症状过敏反应。

In England, most people with hay fever are allergic to grass pollen.在英格兰，大多数人与花粉症过敏草花粉。 Trees, fungal spores and weeds can also cause hay fever.树木，真菌孢子和杂草也可以造成花粉症。

Research shows that pollution can make allergies such as hay fever worse.研究表明，污染可以使过敏，如花粉症更糟。

• Haemophilia 血友病 Haemorrhoids 痔疮 Hair loss 脱发 Hand, foot and mouth disease 另一方面，手足口病 Hangover 宿醉 Hay fever 花粉症 Head injury 头部外伤 Head lice 头虱 Headache 头痛 Health and safety at work 健康及工作安全 Health records 健康记录 Hearing and vision tests for children 听力和视力测试，为儿童 Hearing impairment 听觉受损 Hearing tests 听力测验 Heart attack 心脏病发作 Heart block 心脏传导阻滞 Heart failure 心力衰竭 Heart lung transplant 心肺移植 Heartburn 心 Heatstroke 中暑 Hepatitis 肝炎 Hepatitis A A型肝炎 Hepatitis B B型肝炎 Hepatitis C 丙型肝炎 Hernia, hiatus 疝，中断 Hernia, inguinal 疝，腹股沟 Hiccup 呃逆 Hip replacement 人工髋关节置换术 HIV and AIDS 艾滋病毒和艾滋病 Home tests 首页测试 Homeopathy 顺势 Hormone replacement therapy 激素替代疗法 Hospitals, admission 医院，入院 Hospitals, children 医院，儿童 Hospitals, discharge 医院，出院 Hughes syndrome 休斯综合征 Huntington's disease 亨廷顿病 Hydrocephalus 脑积水 Hydronephrosis 肾积水 Hyperglycaemia 高血糖症 Hyperlipidaemia and lipid-lowering medicines 高脂血症和脂质降低药品 Hypoglycaemia 低血糖 Hypothermia 低温 Hysterectomy 全子宫切除术

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