Octopus

Japanese: たこ
Octopus

A colloquial term for callus, referring to localized keratinocyte thickening. It occurs as a defense reaction of the skin in areas that are repeatedly exposed to external stimuli such as pressure or friction over a long period of time. It is usually a hard, yellowish-brown square plate with a smooth or slightly rough surface. Patients may sometimes complain of tenderness. Examples include calluses that develop in specific areas due to certain occupations (such as calluses on the elbows of tatami mat makers), as well as calluses caused by pens, sitting, and blisters. Treatment is primarily focused on avoiding the cause and not applying external force to the area, but symptomatic treatment involves applying Speel plaster or Pick's plaster.

[Hiromi Mizutani]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

胼胝腫(べんちしゅ)の俗称で、限局性の角質肥厚をさす。長期間にわたって圧迫や摩擦などの外的刺激を繰り返し受ける部位に、皮膚の防御反応として生ずる。通常は黄褐色調の硬い角板で、表面は平滑または多少ざらざらしている。ときに圧痛を訴えることがある。ある種の職業で特定の部位にできるもの(畳職人の肘(ひじ)だこなど)をはじめ、いわゆるペンだこ、座りだこ、靴ずれだこなどがその例である。治療は、原因を避けその部位に外力を加えないことが先決であるが、対症療法としてはスピール膏(こう)やピック膏などを貼(は)る。

[水谷ひろみ]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

<<:  Kite - Octopus

>>:  Octopus (tako/tako) - Octopus (English spelling)

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