Skin Guide

Is That a Skin Tag or a Wart? Key Differences and How to Tell

Skin tags and warts are both common skin growths, but they have very different causes, appearances, and treatments. This guide explains exactly how to tell them apart—and when you should see a doctor.

January 1, 2026Evidence-based

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Quick Comparison Table

FeatureSkin TagWart
TextureSoft, smooth, fleshyRough, bumpy, grainy
ShapeHangs from thin stalk (peduncle)Flat or dome-shaped, no stalk
SurfaceSmooth, no dotsMay have tiny black dots (blood vessels)
ColorSkin-colored or slightly darkerSkin-colored, grey, or brown
CauseFriction, genetics, hormones, ageHuman papillomavirus (HPV) infection
Contagious?NoYes - spreads by contact
Common locationsNeck, armpits, groin, eyelids, under breastsHands, feet, face, genital area
Age groupMore common in adults 40+Common in children and young adults

What is a Skin Tag?

A skin tag (acrochordon) is a small, benign growth of excess skin that typically hangs from a thin stalk called a peduncle. Skin tags are extremely common—affecting about 50% of adults at some point in their lives.

Key characteristics of skin tags:

  • Soft, fleshy, and smooth texture
  • Skin-colored or slightly darker
  • Hang from a thin stalk (peduncle)
  • Usually 2-5mm, but can grow larger
  • Painless unless irritated
  • Not contagious

Skin tags develop due to friction (skin rubbing against skin or clothing), genetic predisposition, hormonal changes (pregnancy, menopause), weight gain, and age. They're more common after age 40.

What is a Wart?

A wart is a rough, bumpy growth caused by the human papillomavirus (HPV). Unlike skin tags, warts are contagious and can spread through direct contact or contaminated surfaces. There are over 100 types of HPV, and different types cause warts in different body areas.

Key characteristics of warts:

  • Rough, bumpy, or grainy texture
  • May have tiny black dots (clotted capillaries)
  • Flat or dome-shaped—no stalk
  • Skin-colored, grey, or brownish
  • Caused by HPV virus
  • Contagious—can spread by contact

Warts are more common in children and young adults, though anyone can get them. They often appear on hands (common warts), feet (plantar warts), face (flat warts), and genital areas (genital warts).

The Easiest Way to Tell Them Apart

If It's a Skin Tag:

  • Hangs from a thin stalk
  • Feels soft and smooth when touched
  • Located in a friction area (neck, armpit)
  • No black dots or rough texture

If It's a Wart:

  • Sits flat on the skin, no stalk
  • Feels rough or bumpy when touched
  • On hands, feet, or face
  • May have tiny black dots (blood vessels)

When to See a Doctor

While both skin tags and warts are usually harmless, see a healthcare professional if:

The growth changes rapidly in size, shape, or color
It bleeds without being injured or caught
It becomes painful, ulcerated, or crusty
It has multiple colors (brown, black, red, white)
You're unsure what type of growth it is
It's in a sensitive area (genitals, eyelids)
Home treatments haven't worked for warts
It looks different from your other spots

Frequently Asked Questions

Still Not Sure What It Is?

Our free AI-powered screening tool can help you identify whether a growth looks like a skin tag, wart, or something else—in seconds.

Medical Disclaimer

This article is for educational purposes only and is not a substitute for professional medical advice. Always consult a qualified healthcare provider for diagnosis and treatment of skin growths. If you have any concerning symptoms, seek medical attention promptly.

Sources

  1. Skin TagsAmerican Academy of Dermatology (2024)
  2. Warts and VerrucasNHS UK (2024)
  3. Skin Tags (Acrochordons)DermNet NZ (2024)