A spider angioma is a dilated, small capillary.
A spider angioma is a dilated, small capillary.
This image displays a central blood vessel with many
This image displays a central blood vessel with many "legs" branching from the center typical of spider angioma.
This spider angioma is seen on a background of sun damage on the cheek, with multiple small linear veins nearby.
This spider angioma is seen on a background of sun damage on the cheek, with multiple small linear veins nearby.
This flat spider angioma demonstrates why it is often called a
This flat spider angioma demonstrates why it is often called a "spider," with tiny blood vessels radiating out from a central larger blood vessel.
As displayed in this image, an angioma can sometimes just look like a red bump, with subtle, tiny radiating blood vessels around it.
As displayed in this image, an angioma can sometimes just look like a red bump, with subtle, tiny radiating blood vessels around it.
This image displays a central large blood vessel with linear legs radiating outwards typical of spider angioma.
This image displays a central large blood vessel with linear legs radiating outwards typical of spider angioma.

Images of Spider Angioma (6)

A spider angioma is a dilated, small capillary.
This image displays a central blood vessel with many
This spider angioma is seen on a background of sun damage on the cheek, with multiple small linear veins nearby.
This flat spider angioma demonstrates why it is often called a
As displayed in this image, an angioma can sometimes just look like a red bump, with subtle, tiny radiating blood vessels around it.
This image displays a central large blood vessel with linear legs radiating outwards typical of spider angioma.

Spider Angioma

A spider angioma is a grouping of small blood vessels at the skin surface. The pattern sometimes resembles the threads of a spider’s web.

Who's At Risk?

Spider angiomas are common in both children and adults. They appear more frequently during pregnancy, in people on birth control pills, or in people with liver disease.

Signs & Symptoms

Spider angiomas are most often seen on the face or trunk, and they also may be seen on the hands, forearms, and ears. There may be one spider angioma or several. Each one is a small (1–10 mm) area of redness, which disappears with direct finger pressure but rapidly returns when the pressure is released. There is often a central red dot and small red lines radiating out from the center.

Take a picture of your skin condition with Aysa

Symptom checkers like Aysa can help narrow down possible skin conditions by analyzing a skin photo.

Self-Care Guidelines

Spider angiomas may disappear as children get older, and women who are pregnant or on birth control pills may see improvement after they are no longer affected by hormones, but they usually are long lasting in adults.

No self-care treatment is needed, unless desired for the cosmetic appearance.

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Treatments

  • If the lesion is cosmetically bothersome, it can usually be removed with burning (electrocautery) or laser treatments.
  • If you might have a liver problem, blood tests will be done.

Visit Urgency

  • See your doctor if the area bleeds repeatedly or begins to grow in size or change in color.
  • If you suddenly develop many lesions, tell your physician.
  • If you have any sign or particular risk of liver disease (such as yellow skin color, swollen belly, or a history of heavy alcohol use), seek medical care.
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References

Bolognia, Jean L., ed. Dermatology, pp.721, 1656, 2157. New York: Mosby, 2003.

Freedberg, Irwin M., ed. Fitzpatrick’s Dermatology in General Medicine. 6th ed. pp.1003, 1013-1014, 2502. New York: McGraw-Hill, 2003.