Spider Angioma

Spider Nevus

Overview

A spider angioma (spider nevus) is a benign vascular lesion consisting of a central arteriole with radiating capillary branches resembling spider legs. They blanch with pressure applied to the central point. One or two spider angiomas are common and benign, but multiple lesions may be associated with liver disease, pregnancy, or estrogen excess.

Key Symptoms

• Small, red, spider-like lesion with a central dot and radiating vessels
• Blanches when pressure is applied to the central arteriole
• Typically 1–10 mm in diameter
• Most common on the face, neck, and upper body
• Usually painless and asymptomatic
• May pulsate visibly in the central arteriole

Affected Areas

Face, Neck, Upper chest, Arms, Hands

Care Instructions

1. No treatment is needed for isolated, asymptomatic spider angiomas.
2. See a doctor if multiple spider angiomas appear, as this may indicate liver disease.
3. Electrocautery or laser treatment can remove lesions for cosmetic reasons.
4. Pregnancy-related spider angiomas often resolve after delivery.
5. Avoid alcohol if liver disease is suspected or confirmed.
6. A liver function evaluation may be recommended if multiple lesions are present.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Common; found in approximately 10–15% of healthy adults, more common in children and pregnant women