Papule

  • Primary lesion
  • Last reviewed:

A papule is a small, solid bump on the skin that you can both see and feel.

The Basics

What is it?

A papule is a small, solid bump on the skin that you can both see and feel. These bumps are smaller than a pencil eraser (less than 1 centimeter) and rise above the skin surface. Unlike pimples with pus or blisters with fluid, papules are solid throughout. Think of them as tiny hills on your skin's landscape - they're the most common type of raised skin lesion.

What does it look like?

Papules can have various appearances:

  • Small raised bumps, from pinpoint size to pencil eraser size
  • Shape variations: Dome-shaped (smooth top), flat-topped, pointed, or warty surface
  • Colors: Skin-colored, pink, red, purple, brown, or yellow
  • Surface: Can be smooth, rough, or scaly
  • Special features: Some have a central dent (umbilicated) like molluscum contagiosum
  • Usually firm to touch, not soft or fluid-filled
  • May occur alone or in groups

Where does it appear?

Papules can develop anywhere on the body:

  • Face: Acne, flat warts, syringomas around eyes
  • Hands and feet: Common warts, flat warts
  • Arms and legs: Keratosis pilaris ("chicken skin"), lichen planus
  • Trunk: Molluscum contagiosum, cherry angiomas
  • Genital area: Pearly penile papules, genital warts
  • Anywhere: Insect bites, drug reactions, skin tags

Associated features

Papules may be accompanied by:

  • Itching (especially with eczema or lichen planus)
  • Tenderness (inflamed acne papules)
  • Surrounding redness or inflammation
  • Gradual increase in number over time
  • Changes in color or size
  • Formation of groups or lines of papules
  • Resolution leaving temporary marks

When to see a doctor

Seek medical evaluation for:

  • Papules that are growing, changing color, or bleeding
  • New papules appearing suddenly in large numbers
  • Papules with irregular borders or multiple colors
  • Painful or tender papules
  • Papules that don't improve with over-the-counter treatments
  • Genital papules or those in sensitive areas
  • Any papules you're concerned about

References

  1. Description of Skin Lesions Merck Manual Professional Edition (2024)
  2. Terminology in Dermatology DermNet NZ (2024)
  3. Benign Skin Lesions Overview Medscape Dermatology (2024)
  4. Primary Skin Lesions Lecturio Medical Education
  5. Stanford Medicine 25 Dermatology Exam