气道慢性炎症性疾病,通常出现广泛多变的可逆性气流受限,并引起反复发作性的喘息、气急、胸闷或咳嗽等症状,常在夜间和(或)清晨发作、加剧,多数患者可自行缓解或经治疗后缓解。引起哮喘的致病因素1、遗传因素。2、环境因素:室内变应原如尘螨、动物皮毛;动物变应原、蟑螂变应原、霉菌等;室外变应原如植物小颗粒(花粉)、真菌(霉菌)等;物理化学刺激如烟味、冷空气、异味、运动情绪变 Chronic inflammatory diseases of the airways, usually with a wide range of reversible air currents, are limited and cause recurrent episodes of wheezing, shortness of breath, chest tightness or coughing, often during the night and / or early morning seizures and exacerbations, most patients Relieve themselves or after treatment. Caused by the pathogenic factors of asthma 1, genetic factors. 2, environmental factors: Indoor allergens such as dust mites, animal fur; animal allergens, cockroach allergens, molds; outdoor allergens such as plant particles (pollen), fungi (mold) Such as smoke, cold air, smell, sports mood changes