Fig. 2From: Etiology, clinical manifestations, and management methods of cryptitis beside the preputial frenulum in menManifestations of skin lesions in cryptitis. A Yellowish oily substance embedded in the bilateral crypts beside the preputial frenulum. B After removing the yellowish oily substance beside the preputial frenulum with a sterile cotton swab, a blind cavity-like structure was exposed, with local redness and swellingBack to article page