Human systems and organs. Follow 17 This is the source of the term " anal-retentive " and the derived informal term "anal". Reblogged this on johnsonflorvil. To prevent diseases of the anus [ citation needed ] and to promote general hygiene, humans often clean the exterior of the anus after emptying the bowels.
The inner sphincter is involuntary and the outer is voluntary.
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Regardless, each will leave you thinking: No one will touch her asshole again for years. Follow 20 However, surface piercings of the perineum are easier to care for and much more common. Saving the planet or making life awkward?