一、临床特点:反复发作性头痛,通常限于一侧,偶尔双侧交替,性质是搏动性疼痛,头痛同时可并发恶心、呕吐。头痛发作频度各人不一,60％病人每周不超过一次,少数病人每周可达3～4次,除丛集性偏头痛可能每天发作,一般偏头痛很少每天发作。典型偏头痛有先兆,以视觉先兆为主。多数有家族偏头痛史,阳性家族史约占60％。偏头痛多起病于儿童或青春期,少数始于30岁后,至更年期倾向缓解。两性中,女性多见,约2:1,月经前后可能频发。二、临床分型:偏头痛除以反复发作性头痛为其主要症状外,可能并发其它神经、躯体 First, the clinical features: recurrent headache, usually limited to one side, and occasionally bilateral alternating, the nature of pulsatile pain, headache can concurrent nausea and vomiting. Headache frequency varies from person to person, 60% of patients no more than once a week, a small number of patients up to 3 to 4 times per week, except for cluster migraine may attack every day, the general migraine seldom attack every day. Typical migraine has aura, visual predominance. Most have family history of migraine, positive family history accounts for about 60%. More migraine onset in children or adolescence, a few began after 30 years of age, to tend to ease menopause. In both genders, women more common, about 2: 1, may be frequent before and after menstruation. Second, the clinical classification: Migraine headache divided by recurrent episodes of its main symptoms, may be complicated by other nerves, body