(HealthDay News) -- Warts are small bumps, caused by a virus, that develop on the skin. While they're generally not cause for concern, some symptoms indicate that a doctor should examine a wart.

The U.S. National Library of Medicine says you should seek a physician's advice if:

• The wart bleeds, leaks discharge or pus, has red streaks, or you have a fever.
• You want to have the wart removed and it's not going away.
• The wart causes pain.
• The wart appears on the genitals or anus.
• Your immune system is weakened by HIV, or you're diabetic.
• The wart changes in appearance or color.