Erythema nevus

Erythema nevus, also known as wine-like nevus or telangiectasia, often occurs at birth or shortly after birth. It occurs on the face, neck, and scalp, and is mostly unilateral, occasionally bilateral, and sometimes involves the mucous membranes. The damage started as irregular red patches, dark red patches, or purplish patches of irregular size, with clear boundaries, not higher than the skin surface, visible capillary expansion, partial or complete discoloration of the pressure, and smooth surface. With age, the color deepens and becomes red and purple, and the lesions in 65% of patients will gradually expand. They can thicken and appear nodules before the age of 40, and easily bleed after trauma.