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Anal cleansing is the hygienic practice of cleaning the anus after using the toilet, especially after defecation. The anus and buttocks may be either washed with liquids or wiped with toilet paper or other solid materials. In Muslim and Hindu cultures, water is usually used for anal cleansing using a jet, as with a bidet, or splashed and washed with the hand. A common hand technique is fill one hand with hot soapy water and wash the anus thoroughly until a desired comfort is achieved. Some people follow this up with toilet paper afterwards for drying purposes. In other cultures (such as most Western countries), wiping is done with toilet paper or similar paper products. In low-income settings of developing countries or during camping trips, materials such as vegetable material, mudballs, stones, sticks and leaves are also used.
Although wiping from front to back minimizes the risk of contaminating the urethra, the directionality of wiping varies based on sex, personal preference, and culture.
Having a hygienic means for anal cleansing available at the toilet is important for overall public health. The absence of anal cleansing material in households can in some circumstances be correlated to the number of diarrhea episodes per household.
The use of toilet paper for post-defecation cleansing first started in China. It became widespread in Western culture. In some parts of the world, especially before toilet paper was available or affordable, the use of newspaper, telephone directory pages, or other paper products was common. The widely distributed Sears Roebuck catalog was also a popular choice until it began to be printed on glossy paper (at which point some people wrote to the company to complain). With modern flush toilets, using newspaper as toilet paper is liable to cause blockages. This practice continues today in parts of Africa; while rolls of Western-style toilet paper are readily available, they can be fairly expensive, prompting poorer members of the community to use newspapers. Sometimes a gel or foam is applied to paper to clean pores and moisturize skin. 
Predominantly Muslim countries
The use of water in Muslim countries is due in part to Islamic toilet etiquette which encourages washing after all instances of defecation. Further, Islam has made flexible provisions for when water is scarce; stones or papers can be used for cleansing after defecation and in ablution. The use of these other means to clean oneself does not include animal bones or skin as they are food for other animals and non-human creatures. In many countries, a hand-held bidet or pail of water is used in lieu of a pedestal.
In Turkey, all Western-style toilets have a small nozzle on the centre rear of the toilet rim aiming at the anus. This nozzle is called taharet musluğu and it is controlled by a small tap placed within hand's reach near the toilet. It is used to wash the anus after wiping and drying with toilet paper. Squat toilets in Turkey do not have this kind of nozzle (a small bucket of water from a hand's reach tap or a bidet shower is used instead).
Another alternative resembles a miniature shower and is known as a "health faucet" or a bidet shower It is commonly placed in an alcove to the right hand side of the toilet where it is easy to reach. These are commonly used in the Muslim world. In the Indian subcontinent, a lota vessel is often used to cleanse with water, though the shower or nozzle is common among new toilets.
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In India and the Indian subcontinent, over 95% of the population use water for cleansing the anal area after defecating. In places where water is scarce or not closely available, a stone or similar hard material is used instead. Use of paper as in the western world is rare in this region and is seen only in some urban and westernised societies. The cleaning of hands after this cleansing process is mandatory and is done using soap. If soap is not available, soil, ash or sand could be used to clean the used hand or both hands. Modern toilets use spray bidets. Older toilets may or may not have running water source, but buckets, bails and mugs are used for storage and for the purpose of cleaning.
|This section does not cite any sources. (May 2015)|
In Southeast Asian countries such as Indonesia, the Philippines, and Thailand, house bathrooms usually have a medium size wide plastic dipper (called gayung in Indonesia, tabo in the Philippines) or large cup, which is also used in bathing. However, most general households utilize toilet paper, "health faucets", or bidets (in some rich mansions) as well. Some health faucets are metal sets attached to the bowl of the water closet, with the opening pointed at the anus. Toilets in public establishments mainly provide toilet paper for free or dispensed, though the dipper (often a cut up plastic bottle or small jug) is occasionally encountered in some establishments. Though most Thais find it difficult not to cleanse their anus with water, most of the shopping malls do not provide health faucets since they are considered to be dirty and could make it hard for them to keep the bathrooms clean. Owing to its ethnic diversity, restrooms in Malaysia often feature a combination of anal cleansing methods where most public restrooms in cities offer toilet paper as well as a built in bidet or a small hand-held bidet shower connected to the plumbing in the absence of a built-in bidet.
The first "paperless" toilet seat was invented in Japan in 1980. A spray toilet seat, commonly known by Toto's trademark Washlet, is typically a combination of seat warmer, bidet and drier, controlled by an electronic panel or remote control next to the toilet seat. A nozzle placed at rear of the toilet bowl aims a water jet to the anus and serves the purpose of cleaning. Many models have a separate "bidet" function aimed towards the front for feminine cleansing. The spray toilet seat is common only in Western-style toilets, and is not incorporated in traditional style squat toilets. Some modern Japanese bidet toilets, especially in hotels and public areas, are labeled with pictograms to avoid language problems, and most newer models have a sensor that will refuse to activate the bidet unless someone is sitting on the toilet.
Europe, South America, US
A bidet can be used for anal cleansing with water. The bidet is commonplace in some European countries, especially in Spain, Portugal and Italy, in some South American countries (Argentina, Uruguay and Paraguay), and also in Japan.
In the US and UK, bidets are not as popular as in some Southern Europe countries and the Middle East, but are slowly becoming more common. Attachable stainless steel or plastic bidets that are fixed to existing toilets are gaining popularity as they are easy to use and inexpensive. Immigrants from Asia tend to use a combination of methods - initial wiping with toilet paper combined with water cleansing or wet wipes - to adapt to their new country where toilets are not equipped with anal washing options.
Although the bidet was invented in France, the use of water for anal cleansing is a rare practice in France. In fact, most toilets in France are separated from the bathroom with no access to water whatsoever, a concept desired for the ability to use the toilet and the washroom simultaneously by different people.
Sticks, stones, leaves
In rural areas of developing countries, sticks, stones, leaves, corn cobs and similar are also used for anal cleansing. This may be due to the unavailability of toilet paper and water or due to cultural reasons.
Rags or washcloths are sometimes used. They are then washed similarly to cloth diapers and used again.
Roman anal cleansing was done with a sponge on a stick. The stick would be soaked in a water channel in front of a toilet, and then stuck through the hole in front of the toilet for anal cleaning.
In ancient Japan, a wooden skewer known as chuugi was used for cleaning after defecation.
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