These nonmelanoma cancers appear to result from chronic sun exposure, such as that of outdoor workers, and they occur almost exclusively on parts of the body exposed to the sun, such as the face and the hands.
Jenis - jenis kanker nonmelanoma ini tampaknya timbul akibat sering terkena sinar matahari, seperti yang dialami para pekerja lapangan, dan hampir selalu timbul pada bagian - bagian tubuh yang terkena sinar matahari, seperti wajah dan tangan.