No racial predilection exists, but lesions are more apparent in light-skinned patients. Young children of both sexes and pregnant women most frequently exhibit lesions. Benign solitary spider angiomas most commonly occur in school-aged children. Almost one half of children may develop a spider angioma at some point. Spider angiomas also are common in women of childbearing age in association with pregnancy or oral contraceptives.
Lesions are asymptomatic and acquired.
Rarely, patients report bleeding from a spider angioma following minor trauma. Ask female patients if they are pregnant, using hormonal supplements, or taking oral contraceptives. Inquire about patient history of alcohol abuse. Ask patients if they are taking medications that may result in liver damage. The entire lesion usually is 0.5-1 cm in diameter.