smegma

"Analogous to tears, smegma is the compilation of secretions by ectopic sebaceous glands located in the prepuce, the seminal secretions of the Cowper's gland and the prostate, the mucin content of the secretions of the urethral glands, and the sloughed epithelial cells. It provides the necessary mucosal lubricant and moisturizer and is rich in sexual pheromones. The prepuce normally prevents detection of this phenomenally charged scent until the glans is exposed at the time erection takes place." - Robert S. Van Howe, MD "Smegma is probably the most misunderstood, most unjustifiably maligned substance in nature. Smegma is clean, not dirty, and is beneficial and necessary. It moisturizes the glans and keeps it smooth, soft, and supple. Its antibacterial and antiviral properties keep the penis clean and healthy. All mammals produce smegma." - Thomas J. Ritter, MD