MSD Manual

Please confirm that you are not located inside the Russian Federation

honeypot link

Spider Angiomas

(Nevus Araneus; Spider Nevus; Vascular Spider)

By

Denise M. Aaron

, MD, Dartmouth Geisel School of Medicine

Last full review/revision Jan 2022| Content last modified Jan 2022
CLICK HERE FOR THE PROFESSIONAL VERSION
GET THE QUICK FACTS
Topic Resources

Spider angiomas are small, bright-red spots consisting of a central dilated blood vessel surrounded by slender dilated capillaries (the smallest blood vessels) that resemble spider legs.

Spider angiomas on the face are commonly seen in fair-skinned people and may occur in children. In most people, there is no known cause, but people with cirrhosis Cirrhosis of the Liver Cirrhosis is the widespread distortion of the liver's internal structure that occurs when a large amount of normal liver tissue is permanently replaced with nonfunctioning scar tissue. The scar... read more Cirrhosis of the Liver often develop many spider angiomas, as do many women who are pregnant or who are using oral contraceptives. Spider angiomas are not present at birth.

Spider angiomas are usually less than ¼ inch (about 0.5 centimeters) across. They are harmless and cause no symptoms but may be of cosmetic concern. Spider angiomas that develop during pregnancy or oral contraceptive use usually disappear on their own 6 to 9 months after childbirth or after discontinuing oral contraceptive use.

Treatment of spider angiomas is not usually required, but if it is desired for cosmetic reasons, a doctor can destroy the central blood vessel with laser therapy Using Lasers to Treat Skin Problems Using Lasers to Treat Skin Problems or with an electric needle (electrodesiccation).

NOTE: This is the Consumer Version. DOCTORS: CLICK HERE FOR THE PROFESSIONAL VERSION
CLICK HERE FOR THE PROFESSIONAL VERSION
quiz link

Test your knowledge

Take a Quiz! 
iOS ANDROID
iOS ANDROID
iOS ANDROID
TOP