Warts and verrucas are caused by a virus. They can be spread to other people from contaminated surfaces or through close skin contact. You're more likely to spread a wart or verruca if your skin is wet or damaged.
It can take months for a wart or verruca to appear after contact with the virus.
If you have a wart you can get it checked at the clinic. We may be able to freeze the wart (Cryosurgery) to prevent further spread.