Warts are caused by a virus known as human papilloma virus, or HPV. They can be spread in moist environments such as public showers, locker rooms and swimming areas, but not everyone who comes in contact with a plantar wart will develop one.
Your podiatrist will diagnosis a plantar wart based on physical exam and description of symptoms.
The usual choice of therapy for treating plantar warts is an occlusive salicylic acid dressing, which when applied eventually softens the skin layers of the wart so that it can be debrided. This process may take several weeks or months. Other treatment options for plantar warts include injection with medication, freezing them with liquid nitrogen, and removing them with surgery.
Sometimes plantar warts go away on their own if left untreated. However, many warts can become increasingly larger and more painful and can begin to multiply into clusters of warts called mosaic warts. Walking and running will become difficult in these situations.