Thank you for your query.
type lesions are caused by viruses. If not a wart it will be caused by a different infective agent, fungus or bacteria. I do not think this is cancer, but having said that it should still be treated by a doctor to prevent future complications. This should have no impact on your ability to normal labour, but again it is best to treat it to minimize the risk of infecting the baby during the birth process. I trust this information is helpful.