胸痛

1. Origins, structure, and basic meaning

• Structure: 胸痛 (きょうつう) is a medical compound noun for pain felt in the chest.
• Basic usage: 突然の胸痛を訴える makes the symptom reported by a character the object, while 胸痛が起きた時刻 identifies when it began for a questionnaire.

2. Common pitfalls and similar expressions

• Reported symptom and onset record
  • 胸痛を訴える is the person’s report, whereas 胸痛が起きる records symptom onset. The word alone cannot diagnose the underlying disease.