Sento

Sentō (銭湯^?) is a type of Japanese communal bath house where customers pay for entrance. Traditionally these bath houses have been quite utilitarian, with a tall barrier separating the sexes within one large room, a minimum of lined up faucets on both sides and a single large bath for the already washed bathers to sit in among others. Since the second half of the 20th century, these communal bath houses have been decreasing in numbers as more and more Japanese residences now have baths. Some Japanese find social importance in going to public baths, out of the theory that physical proximity/intimacy brings emotional intimacy, which is termed skinship in pseudo-English Japanese. Others go to a sentō because they live in a small housing facility without a private bath or to enjoy bathing in a spacious room and to relax in saunas or jet baths that often accompany new or renovated sentōs.

Another type of Japanese public bath is onsen, which uses hot water from a natural hot spring. In general the word onsen means that the bathing facility has at least one bath filled with natural hot spring water. However throughout the Kansai region of Japan the word "onsen" is also a commonly used naming scheme for sentō. Sentō and supersentō in Kansai that do have access to a hot spring well often differentiate themselves by having "natural hot spring" (天然温泉) somewhere on their signage.

There are many different looks for a Japanese sentō, or public bath. Most traditional sentō, however, are very similar to the layout shown on the right. The entrance from the outside looks somewhat similar to a temple, with a Japanese curtain (暖簾, noren) across the entrance. The curtain is usually blue and shows the kanji 湯 (yu, lit. hot water) or the corresponding hiragana ゆ. After the entrance there is an area with shoe lockers, followed by two long curtains or door, one on each side. These lead to the datsuijo (脱衣場, changing room), also known as datsuiba for the men and women respectively. The men's and the women's side are very similar and differ only slightly.

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