Dehydration

脱水 (dassui)

Dehydration occurs when the body loses more fluid than it takes in, disrupting normal bodily functions. Japan's hot and humid summers make dehydration a common cause of hospitalization, particularly among elderly people and children. Mild dehydration can be managed with oral rehydration solutions available at pharmacies. Severe dehydration requiring IV fluids must be treated at a hospital or clinic. Seek medical care if symptoms include extreme thirst, dizziness, rapid heartbeat, or confusion.

Japan's Ministry of the Environment issues daily heat stroke risk alerts during summer, and IV rehydration drip clinics (tenteki) have become common in urban centers.

In 9 languages

LanguageTerm
English Dehydration
Japanese (日本語) 脱水
Chinese (中文) 脱水
Korean (한국어) 탈수
Portuguese Desidratação
Spanish Deshidratación
Filipino Kakulangan ng tubig sa katawan
Thai ภาวะขาดน้ำ
Vietnamese Mất nước
Romanization dassui
← All glossary terms Guides Phrasebook

Last reviewed: September 2026