Pruritus is a skin disease in which there is no primary skin damage but only pruritic symptoms. It can be divided into primary pruritus and secondary pruritus. In primary pruritus, the cause is unknown and not easily treated; whereas pruritus confined to the anus, often secondary to anorectal disease, can often be cured after the cause is removed.
Causes of anal pruritus
1, systemic factors
(1) spicy food stimulation: chili peppers, spices, too much white wine consumption, can induce the disease.
(2) allergic reactions: certain proteins (fish, shrimp, crab, etc.), drugs, pollen, etc. can cause human allergies, producing too much histamine, which acts on the peripheral nerves and produces pruritus.
(3) Internal diseases: endocrine dysfunction, accumulation of bile acid, urea and other metabolites in the body, malnutrition, certain blood diseases, etc.
(4) mental factors: excessive excitement, depression or neurasthenia, etc.
(5) Drug stimulation: morphine, quinine, narcotics, antibiotics, etc.
(6) Genetic factors
2.Local factors
(1) Local friction, chemical fibers and hot and cold stimulation, etc.
(2) abnormal secretion of sweat glands and sebum around the anus; indole odorant in feces and accumulation of stool residue in the anal folds to stimulate the skin
(3) anorectal diseases: anal fistula, hemorrhoids, prolapse, anal sinusitis, anal papillitis, anal incontinence, etc. stimulate the anal glands, causing increased secretion of glandular fluid, resulting in anal dampness, stimulating the skin and itching.
(4) pinworms, vaginal trichomonas, vaginitis, prostate hypertrophy, etc.
The harm of anal pruritus
At the beginning of the disease, it is limited to the itching of the skin around the anus, sometimes heavy and sometimes light, sometimes stinging and sometimes burning, sometimes like insects walking, sometimes like mosquito bites and fire, sometimes it is intolerable, more so at night, people are restless. Due to scratching, the skin ulcerates, oozes, crusts, and does not heal for a long time, resulting in thickening around the anus, thickening and roughness of the wrinkled wall in the form of radial folds, moss-like changes, pigmentation or loss of pigmentation, and even spreading to the perineum, scrotum, labia or sacral tail. If the disease is prolonged, it is easy to develop secondary chaps. The long term can cause neurasthenia, mental depression, loss of taste, sleepless nights.
How to prevent anal pruritus
1, timely treatment of local and systemic diseases that cause anal pruritus, such as internal hemorrhoids, anal fissures, anal fistula, perianal eczema, diarrhea, diabetes, parasitic diseases, etc.
2, underwear should not be too tight, too hard, it is appropriate to wear cotton loose fitting underwear, do not wear artificial fiber underwear, and should be diligently washed and changed.
3, pay attention to the combination of work and rest, keep a happy mood, prevent excessive tension and anxiety, do not scratch the anus, do not use too hard objects to rub the anus.
4, keep the anus clean and dry, as far as possible every night to clean the anus. It is advisable to use warm water to clean the anal area. The general use of soap, especially not alkaline strong. The towels and basins used for cleaning should be dedicated to each other to avoid cross-infection.
5, to prevent constipation, eat more vegetables and fruits, drink more water, keep the bowels open, can effectively excrete body waste, to prevent the rectal discharge of exudate to stimulate the anus cause itching. Do not eat or eat less stimulating food, such as chili, strong tea, coffee, high alcohol, etc. Allergic people should eat less allergy-prone food, such as fish, shrimp, etc., to avoid contact with allergy-inducing chemicals.
6, perianal itching more than but the skin is not broken, you can immerse gauze or skim cotton in boric acid liquid, water temperature, remove the wring to not drip, compress the perianal area, can immediately stop the itching. Apply it once a day, morning and evening, for about 5 minutes each time. Wipe dry after dressing, puff with talcum powder.