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 a 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.
John R. Taylor, MB, a Canadian pathologist and medical researcher, 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.
The term "ridged band" was subsequently used by Taylor in an anatomical and histological study of the foreskin published in the British Journal of Urology in 1996. Most or all of the ridged band is removed by male circumcision.
Taylor described the ridged band as a transversely ridged band of mucosal tissue, located just inside the tip of the foreskin near the mucocutaneous boundary, also known as the preputial sphincter. He characterized the ridged band as intensely vascular and richly innervated, stating that it "contains more Meissner's corpuscles than does the smooth mucosa", and noted that these tactile corpuscles were found only in the crests of ridges.
The prepuce, including the ridged band, is a specific erogenous zone.