Appendix

虫垂 (chūsui)

The appendix is a small, finger-shaped pouch of tissue attached to the large intestine in the lower right abdomen. Its function is not fully understood. Appendicitis — inflammation of the appendix — is a surgical emergency requiring prompt removal. Symptoms include sudden sharp pain in the lower right abdomen, fever, and nausea.

Suspected appendicitis in Japan is typically evaluated in the emergency department or surgery department.

In 9 languages

LanguageTerm
English Appendix
Japanese (日本語) 虫垂
Chinese (中文) 阑尾
Korean (한국어) 충수
Portuguese Apêndice
Spanish Apéndice
Filipino Apendiks
Thai ไส้ติ่ง
Vietnamese Ruột thừa
Romanization chūsui
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Last reviewed: September 2026