病人 literally means 'sick person' — the character 病 (bìng) means 'illness' or 'to be ill', and 人 (rén) means 'person'. Together, they form a compound noun meaning 'patient', i.e., a person receiving medical care. This term is neutral and widely used in hospitals, clinics, health insurance forms, and everyday conversation when referring to someone under treatment or recovering from illness.

Unlike more formal or technical terms like 就诊者 (jiùzhěn zhě, 'person seeking medical care') or clinical labels like 患者 (huànzhě, which carries a slightly more serious or chronic connotation), 病人 is the most common, general-purpose word for 'patient' across spoken and written Chinese. It appears frequently in news reports, public health announcements, and doctor–patient interactions — always referring to the person receiving care, not the caregiver or medical staff.