This image displays skin-colored, flat bumps typical of flat warts. This image displays multiple skin-colored, barely raised lesions typical of flat warts. This image displays typical, multiple flat warts. Numerous skin colored flat warts are seen here on the forehead. In people with darker skin, flat warts can look lighter in color than normal skin. The linear arrangement of flat warts on the left side of the picture illustrates how a scratch can spread the infection. Flat warts are not as raised as common warts; when they are numerous, as on the chin of this child, they can simulate a rash. In lighter skinned people, flat warts are pink in color. The straight line of warts displays the spread of the virus from a scratch. Flat warts can be widely scattered across the face. Flat warts may be difficult to see in darker skin and often have a lighter color than normal skin.
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Flat Wart:
A parent's guide to condition and treatment information

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Picture of Flat Wart: This image displays skin-colored, flat bumps typical of flat warts. Divider line
This image displays skin-colored, flat bumps typical of flat warts.
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Signs and Symptoms
The most common locations for flat warts include the following:
  • Face, especially in children
  • Neck
  • Backs of hands
  • Arms 
  • Legs, especially in women who shave
  • Beard area, especially in men who shave
Flat warts are very slightly raised smooth skin-colored bumps ranging in size from 1 to 5 mm. Flat warts are usually numerous and may appear in a line because of reinfection within the same person (autoinoculation) from scratching or shaving.  

Infection with flat warts can be graded as follows:
  • Mild – one or a few painless warts
  • Moderate – 10–100 painless lesions
  • Severe – more than 100 lesions that cause enough pain to limit normal life activities
Last Modified: 3 Mar 2008

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