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subjective symptoms; patient's complaints
初期の段階では自覚症状がないことが多い。
In the early stages, there are often no noticeable symptoms.
自覚症状が出た時には病気が進行していた。
By the time symptoms appeared, the illness had progressed.
健康診断は自覚症状がなくても受けるべきだ。
You should have health checkups even without symptoms.