SynonymsSweating, hidrosis, diaphoresis
Amanda Françozo At The Runner Sports Fragment.jpg
Droplets of perspiration on the skin

Perspiration, also known as sweating, is the production of fluids secreted by the sweat glands in the skin of mammals.[1]

Two types of sweat glands can be found in humans: eccrine glands and apocrine glands.[2] The eccrine sweat glands are distributed over much of the body.

In humans, sweating is primarily a means of thermoregulation, which is achieved by the water-rich secretion of the eccrine glands. Maximum sweat rates of an adult can be up to 2–4 liters per hour or 10–14 liters per day (10–15 g/min·m2), but is less in children prior to puberty.[3][4][5] Evaporation of sweat from the skin surface has a cooling effect due to evaporative cooling. Hence, in hot weather, or when the individual's muscles heat up due to exertion, more sweat is produced. Animals with few sweat glands, such as dogs, accomplish similar temperature regulation results by panting, which evaporates water from the moist lining of the oral cavity and pharynx.

Although sweating is found in a wide variety of mammals,[6][7] relatively few (exceptions include humans and horses) produce large amounts of sweat in order to cool down.[8][9]


  • The words diaphoresis and hidrosis both can mean either perspiration (in which sense they are synonymous with sweating)[10][11] or excessive perspiration (in which sense they can be either synonymous with hyperhidrosis or differentiable from it only by clinical criteria involved in narrow specialist senses of the words).
  • Hypohidrosis is decreased sweating from whatever cause.[12]
  • Focal hyperhidrosis is increased or excessive sweating in certain regions such as the underarm, palms, soles, face, or groin.
  • Hyperhidrosis is excessive sweating, usually secondary to an underlying condition (in which case it is called secondary hyperhidrosis) and usually involving the body as a whole (in which case it is called generalized hyperhidrosis).[12]
  • Hidromeiosis is a reduction in sweating that is due to blockages of sweat glands in humid conditions.[13]
  • A substance or medicine that causes perspiration is a sudorific or sudatory.
Other Languages
العربية: تعرق
asturianu: Sudu
авар: ГӀетӀ
Aymar aru: Jump'i
azərbaycanca: Tər
Bân-lâm-gú: Kōaⁿ
беларуская: Пот
беларуская (тарашкевіца)‎: Пот
भोजपुरी: पसीना
български: Изпотяване
bosanski: Znojenje
brezhoneg: C'hwez
català: Suor
čeština: Pot
Cymraeg: Chwys
dansk: Sved
Deutsch: Schweiß
ދިވެހިބަސް: ދާ
Ελληνικά: Ιδρώτας
español: Sudor
Esperanto: Ŝvito
euskara: Izerdi
فارسی: عرق‌کردن
français: Sueur
Gaeilge: Allas
galego: Suor
հայերեն: Քրտինք
हिन्दी: पसीना
hrvatski: Znojenje
Ido: Sudoro
Bahasa Indonesia: Keringat
íslenska: Sviti
italiano: Sudorazione
עברית: זיעה
ಕನ್ನಡ: ಬೆವರು
ქართული: ოფლი
Kiswahili: Jasho
Кыргызча: Тердөө
лакку: Гьухъ
Latina: Sudor
latviešu: Sviedri
lietuvių: Prakaitavimas
magyar: Izzadás
मराठी: घाम
Bahasa Melayu: Peluh
Mìng-dĕ̤ng-ngṳ̄: Gâng
Nederlands: Zweten
नेपाली: पसीना
norsk: Svette
ਪੰਜਾਬੀ: ਮੁੜ੍ਹਕਾ
polski: Pot
português: Suor
română: Transpirație
Runa Simi: Hump'i
русский: Пот
shqip: Djersitja
Simple English: Sweat
slovenčina: Pot (tekutina)
slovenščina: Znojenje
српски / srpski: Знојење
srpskohrvatski / српскохрватски: Znojenje
Basa Sunda: Késang
suomi: Hiki
svenska: Svettning
Tagalog: Pawis
தமிழ்: வியர்வை
తెలుగు: చెమట
тоҷикӣ: Арақ кардан
Türkçe: Ter
українська: Піт
اردو: پسینہ
Tiếng Việt: Mồ hôi
ייִדיש: שוויצן
中文: 汗液