early symptom; initial symptom
Medical term for the first signs or symptoms of a disease or condition.
Sore throat and runny nose are common early symptoms of a cold.
This disease has almost no early symptoms, so it is often detected late.
症状 is a general term for any symptom, while 初期症状 specifically refers to early or initial symptoms.
Compound of 初期 (early stage) and 症状 (symptom).