pruritus ani

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Related to pruritus ani: pruritus vulvae, Pinworms


an unpleasant sensation of the skin, provoking the desire to scratch or rub it; called also itching. adj., adj prurit´ic. It is common in many types of skin disorders, especially allergic inflammation and parasitic infestations. Systemic diseases that may cause pruritus include diabetes mellitus (pruritus vulvae) and liver disorders with jaundice. Hemorrhoids are often accompanied by rectal pruritus. Emotional distress plays an important role in the development and control of this disturbing symptom. Unless pruritus is relieved the patient may become exhausted from lack of sleep. Cleanliness, soothing ointments or lotions, sodium bicarbonate baths, and sometimes tranquilizing drugs are used in the relief of pruritus. Since it is a symptom of some other disorder, complete cure of pruritus depends on control of the primary illness.
pruritus a´ni intense chronic itching in the anal region.
pruritus seni´lis itching in the aged, due to degeneration of the skin.
uremic pruritus generalized itching associated with chronic renal failure and not attributable to other internal or skin disease.
pruritus vul´vae intense itching of the external genitalia in the female.

pru·ri·tus ani

itching of varying intensity at the anus; may be paroxysmal or constant, associated with seborrheic candidiasis or moniliasis, with irritated and enlarged hemorrhoidal veins, or may occur independently of any cutaneous lesions in association with systemic disease.

pruritus ani

a common chronic condition of itching of the skin around the anus. Some causes are candidal infection, contact dermatitis, external hemorrhoids, pinworms, psoriasis, and psychogenic illness. Treatment is best directed at the specific cause. However, symptomatic relief may be obtained with careful cleansing, soothing creams or lotions, topical corticosteroids, antihistamines, and tranquilizers.

pru·ri·tus a·ni

(prūr-ī'tŭs ā'nī)
Itching at the anus; may be associated with seborrheic dermatitis, candidosis, external hemorrhoids, infection by pinworms or other helminths, or systemic disease.


itching; common in many types of skin disorders, especially allergic inflammation and parasitic infestations. Its presence in animals is inferred because of the presence of scratching, which would be a more accurate description. Pruritus is epidermal in origin and does not occur in deep ulcerations, although they may be painful. It is most intense at mucocutaneous junctions. See also paresthesia, hyperesthesia.

pruritus ani
intense chronic itching in the anal region. May be caused by perianal dermatitis, intestinal parasitism and anal sac disease in dogs and cats.
cholinergic pruritus
caused by stimulation of afferent cholinergic fibers at the neuroglandular junction of the sweat gland with release of acetylcholine and sweat. There is mast cell degranulation. Called also heat reflex urticaria.
essential pruritus
that occurring without known cause.
symptomatic pruritus
that which occurs secondarily to another condition.

Patient discussion about pruritus ani

Q. I have had a rectal itghing problem for about 11/2 yrs.since my dr.put me on blood press.& cholest. medic it wakes me up & keeps me awake if my rectal contacts anything the itching is intolerable.I have had md's surg's and dermatologists look and they can't help. they say maybe excema, psoraisis but that med don't help, but benadryl cream seems to help a little

A. Have you tried to change your diet? Coffee, tea, cola, chocolate, tomatoes, and citrus fruits may cause itching in this area (termed anal pruritus). You can try to avoid these foods and to keep a log of the itching sensation to see what helped. Apart from that, consulting a doctor is usually necessary.

More discussions about pruritus ani
References in periodicals archive ?
Pruritus ani is frequently encountered in children.
Anal itching or pruritus ani is usually the result of scratching but irritation from stools and from cleaning after bowel movements keeps the rash going.
Symptoms of Dipylidium infestation have been reported infrequently but are generally described as mild and nonspecific and include abdominal pain, diarrhea, pruritus ani, failure to gain weight, and irritability.
A PRURITUS ani (Latin for an itchy bum) can be caused by threadworms so check your poo for tiny white flecks.