A verruca is a type of wart that affects the bottom of the feet. It is caused by a viral infection known as Human Papilloma Virus (HPV) . Verrucas can be painful, especially when you put weight on them, and they tend to be flat rather than raised. They may have tiny black dots in the center, which are blood clots that have formed in tiny blood vessels. Verrucas are benign lesions, which means they are not malignant (cancerous) growths. They are usually harmless and can go away on their own, but it may take months or even years. Verrucas can be spread to other people through close skin contact or contact with contaminated objects or surfaces, such as towels, shoes, and socks. You can treat verrucas if they bother you, keep coming back, or are painful. A pharmacist can help with warts and verrucas, and you can buy creams, plasters, and sprays from pharmacies to treat them. It is important to see a health professional such as a Podiatrist before starting any treatment if in doubt.