What Are Subungual and Periungual Warts? Subungual warts are warts that occur underneath the fingernail. Due to their location, they can be challenging to treat, and they can be pretty painful.

Periungual warts commonly affect children and young adults, especially if they are nail biters. These warts are difficult to treat, but it helps to start treatment as soon as you identify the warts.

Located in the longitudinal grooves of the proximal nail folds, periungual warts are often a source of embarrassment, deformity, and pain. When located in the lateral nail folds, they can cause ...