Which wart is prevalent in the hands of children and can become painful with pressure?

The common wart, also known as verruca vulgaris, is indeed prevalent in the hands of children. These warts typically appear as raised, rough bumps and can vary in size. They are caused by the human papillomavirus (HPV) and are often spread through direct contact or by touching surfaces contaminated with the virus.

Common warts can become painful when pressure is applied, especially if they are located on areas of the hands that endure frequent use or friction, such as the fingertips. They are distinct from other types of warts, such as plantar warts, which primarily develop on the soles of the feet, and flat warts, which are generally smooth and can occur on the face and other areas. Venereal warts, associated with sexually transmitted infections, typically appear in the genital area and are unrelated to the types of warts commonly found on children's hands. Thus, the common wart stands out as the correct answer due to its location and symptoms.