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An anal fissure is a break or tear in the skin of the anal canal. Anal fissures may be noticed by bright red anal bleeding on toilet paper and undergarments, or sometimes in the toilet. If acute they are painful after defecation , [ 1 ] but with chronic fissures, pain intensity often reduces and becomes cyclical.
Annular lake, a ring-shaped lake caused by meteor impact; Annulus (mathematics), the shape between two concentric circles; Annulus (mycology), structure on mushroom; Annulus (firestop), site of construction issue; Annulus (zoology), an external circular ring; Annular piston, a ring-shaped piston; Annulus (well), void between concentric cylinders
It is most often due to long-term exposure of the anus to faeces, with reasons including diseases of the anus such as haemorrhoids, fistulas and fissures; poor hygiene or chronic diarrhoea; local infections such as tapeworm and thrush; or skin conditions such as psoriasis and contact dermatitis. If there is a specific cause identified, the ...
Plus, the definition of sex and losing your virginity varies among individuals. “Being sexually active could mean penetrative sex with a vagina, but it could also mean oral sex, anal sex," she adds.
The common tendinous ring, also known as the annulus of Zinn or annular tendon, is a ring of fibrous tissue surrounding the optic nerve at its entrance at the apex of the orbit. It is the common origin of the four recti muscles of the group of extraocular muscles. It can be used to divide the regions of the superior orbital fissure. [1]
The word "annulus" is borrowed from the Latin word anulus or annulus meaning 'little ring'. The adjectival form is annular (as in annular eclipse). The open annulus is topologically equivalent to both the open cylinder S 1 × (0,1) and the punctured plane.
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Anal fistula is a chronic abnormal communication between the anal canal and the perianal skin. [1] An anal fistula can be described as a narrow tunnel with its internal opening in the anal canal and its external opening in the skin near the anus. [2]