大便

1. Origins, structure, and basic meaning

• Structure: 大便 is read as だいべん and is a noun meaning feces or stool.
• Basic usage: It appears in concrete examination and medical contexts, such as collecting a sample or asking about its condition.

2. Common pitfalls and similar expressions

• Referring to a sample
  • 大便の一部を採取する means to collect part of the stool as a sample. Example: 検査のために大便の一部を採取した。
• Referring to its condition
  • 大便の状態 literally concerns the condition of the stool and can naturally be rendered as a question about bowel movements in context. Example: 看護師は患者に大便の状態を尋ねた。