With OCD a teen may, for example, have constant worry and fear about illness or germs, and may become stuck in a pattern of washing and cleaning that becomes time-consuming, distressing, and feels impossible to control.

• 比如，一个患有强迫症的年轻人可能对疾病和细菌产生长久担心，于是便执迷于耗时、痛苦而又难以自拔的清洗行为模式。