A skin reaction in which blotches develop in a netlike pattern on arms and legs. Livedo reticularis becomes more intense in response to cold temperatures. It is more obvious in pale skin and is more common in women than men. Blotches frequently occur in infants and children and are especially apparent at bath time. Livedo reticularis is due to changes in blood flow that lead to excess blood in the superficial veins. Blood is blue because of low oxygen content and stands in contrast to surrounding areas of normally pale skin. Livedo reticularis may be a benign (not cancerous) condition, but it is a blood vessel response to a disorder. It can be a sign of a more serious underlying illness, such as an infection, vascular problem, or connective tissue disorder.
Semipermanent bluish mottling of the skin of the legs and hands. It is aggravated by exposure to cold.
A mesh-like pattern of purplish or bluish discoloration on the skin, commonly observed on the lower legs, arising from the expansion of blood vessels beneath the skin. It is more prevalent among individuals with vasculitis (inflammation of blood vessels) and those who experience heightened sensitivity to cold. This phenomenon poses no threat and tends to worsen during cold weather.