 Telangiectasia ( small vascular malformations ) may occur in the skin and mucosal linings of the nose and gastrointestinal tract . The most common problem is nosebleeds ( epistaxis ) , which happen frequently from childhood and affect about 90 – 95 % of people with HHT . Lesions on the skin and in the mouth bleed less often but may be considered cosmetically displeasing ; they affect about 80 % . The skin lesions characteristically occur on the lips , the nose and the fingers , and on the skin of the face in sun @-@ exposed areas . They appear suddenly , with the number increasing over time . 
