Anyone can develop warts; this has absolutely nothing to do with poor hygiene. Warts are common in people with weakened immune systems. People of all ages are affected.

The humid environment in swimming pools, sports facilities, or saunas, combined with often wet and sensitive skin, creates ideal conditions for infection, allowing the bacteria to enter through minor skin injuries. There, they multiply in the uppermost layer of skin, leading to visible skin changes and calluses on the hands and feet, as well as on the face.