prodromal phase; prodrome
Medical and psychiatric term for the early stage of a disease or disorder, before the full symptoms appear. Used in clinical contexts.
統合失調症の前駆期には、非特異的な症状が現れることが多い。
In the prodromal phase of schizophrenia, nonspecific symptoms often appear.
前駆期の
It is important to provide appropriate intervention during the prodromal stage.
Compound of 前駆 (zenku, 'precursor' or 'forerunner') and 期 (ki, 'period' or 'phase'). The term is used in modern medical and psychiatric contexts.