Merck Manual

Please confirm that you are not located inside the Russian Federation

honeypot link
Quick Facts

Spider Angiomas

By

The Manual's Editorial Staff

Last full review/revision May 2020| Content last modified May 2020
Click here for the Professional Version
Get the full details
Topic Resources

What is a spider angioma?

A spider angioma is a small, bright-red spot on the skin that's surrounded by thin red lines. These lines may look a little bit like a tiny spider, which is how it gets its name. It's not caused by spiders.

  • Spider angiomas are tiny blood vessels that have grown larger than normal

  • They are harmless and don't hurt or itch

  • You aren't born with spider angiomas—they show up later

  • They usually go away on their own, but doctors can remove them with a laser or electric needle

What causes spider angiomas?

The cause of spider angiomas isn’t known, but some people are more likely to get them:

Spider angiomas on the face are common in fair-skinned people.

How do doctors treat spider angiomas?

Usually no treatment is needed.

Spider angiomas that appear during pregnancy or while using birth control pills usually go away on their own about a year after you give birth or stop taking the pills.

Doctors can remove spider angiomas with a laser or electric needle.

NOTE: This is the Consumer Version. DOCTORS: Click here for the Professional Version
Click here for the Professional Version
Others also read

Test your knowledge

Atopic Dermatitis (Eczema)
Atopic dermatitis, commonly known as eczema, is a chronic condition that causes itchy inflammation of the upper layers of skin. Eczema is especially common in people who have hay fever or asthma, and in people whose family members have these conditions. Eczema is common, particularly in urban areas and developed countries. What percentage of children and adolescents are affected by eczema?  
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID

Also of Interest

Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
TOP