Ridged band
The ridged band is a band of highly innervated wrinkly skin toward the end of the foreskin. The term ridged is used to describe the area instead of the more commonly used term wrinkled. It has, especially in regard to phimosis (and preputioplasty), been called preputial ring or phimotic ring, ring being analogous to band, referring to the shape, and preputial meaning pertaining to the prepuce. More particularly, it refers to the transitional area from the external to the internal surface of the prepuce, or foreskin.
The late John R. Taylor, MB, Ch.B.,MRCPEd, FRCPC, a British-Canadian pathologist and biomedical researcher who practiced in Winnipeg, MB, first used the term "ridged band" instead of "wrinkly skin" and described the ridged band at the Second International Symposium on Circumcision, organized by NOCIRC in San Francisco, 1991, after examining the foreskins of 22 adults obtained at autopsy. The mean age was 37 years, range 22–58. The prepuces were studied grossly and histologically.