Pruritus ani is itching around the anal canal. It is a common symptom and in approximately half of the cases, no cause can be found.

Causes

Anal discharge

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    Haemorrhoids

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    Fistula-in-ano

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    Skin tags

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    Warts ( Fig. 50 )

    Figure 50, Anal warts (condylomata acuminata) .

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    Carcinoma

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    Polyps

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    Gonococcal proctitis

Faecal soiling

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    Incontinence

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    Poor hygiene

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    Diarrhoea

Skin disease

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    Candidiasis

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    Tinea cruris

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    Lichen sclerosus

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    Contact dermatitis

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    Scabies

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    Psoriasis

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    Eczema

Parasites

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    Threadworms

Psychogenic

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    Anxiety

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