Summary: 后遗症 (hòuyízhèng) is a Chinese noun that literally translates to “sequela” or “aftereffects,” referring to the long-term negative consequences that linger after an illness, injury, or major event has concluded. While rooted in medical terminology, it is now widely used metaphorically in daily life to describe the lasting psychological, social, or emotional fallout from any significant experience, such as a breakup, a stressful project, or even a holiday. Understanding 后遗症 is key to grasping how Chinese speakers discuss lasting impacts, both physically and emotionally.