我科遇见一家2代3例同患遗传性出血性毛细血管扩张症。例1，女，13岁。出生后3个月时，发现面颊部出现毛细血管扩张，逐年加重，近5年反复鼻衄。皮肤科所见：面部、双面颊、口唇、双耳廓、颈部、双上肢伸侧见密集成簇细小的毛细血管扩张，色鲜红、呈圆点状或斑片状，压之退色。 My family met a 2 generation 3 cases with hereditary hemorrhagic telangiectasias. Example 1, female, 13 years old. 3 months after birth, the capillaries were found telangiectasia, increasing year by year, repeated epistaxis in the past 5 years. Dermatology seen: facial, double cheek, lips, both ears, neck, upper extremity extensor to see the dense clusters of small telangiectasias, bright red color, was a dot or patchy, the pressure of the fade.