微熱

1. Origins, structure, and basic meaning

• Structure: 微熱, read びねつ, denotes a slight or low-grade fever.
• Basic usage: In 朝から微熱が続いているので、今日は家で休む。, the speaker says they will rest at home today because a slight fever has continued since morning.

2. Common pitfalls and similar expressions

• Degree and duration
  • 微 in 微熱 marks the fever as slight. 微熱が続く can describe a low fever that persists, so the word does not mean short-lived.
• Change in the fever
  • 微熱が出た means a slight fever developed, while 下がった means it subsided. The second example presents its onset and later change in order.