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Spider angioma



Spider angioma is an abnormal collection of blood vessels near the surface of the skin.

Alternative Names

Nevus araneus


Spider angiomas are very common. They are especially common during pregnancy and in patients with liver disease. They occur in both children and adults.

  • Blood vessel sore (lesion)
    • May have a red dot in the center
    • Has reddish extensions that reach out from the center
    • Disappears with pressure and reappears when pressure is released
  • Most often seen on the face and neck
Signs and tests

No testing is usually necessary, but a skin biopsy may be needed to confirm the diagnosis in some cases. Blood tests may be done if a liver problem is suspected.

Support Groups

Expectations (prognosis)

Spider angiomas often disappear in children but tend to persist in adults.

Calling your health care provider

A spider angioma can usually be examined during a routine visit with your health care provider. It is important to mention to your doctor if you develop a new spider angioma, to rule out related medical conditions.



Treatment is generally not necessary. In some cases, electrocauterization or laser treatment may be used.


Review Date: 10/3/2008
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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