(Chinese only) 耳道的皮膚有一個自我移動的功能，皮屑和污垢會在耳道深處向外耳道推進，所以不清潔耳道，耳垢亦會自動排出。

 

 

Speaker:

Professor TONG Chi Fai Michael
Professor and Chairman
Department of Otorhinolaryngology, Head and Neck Surgery
The Chinese University of Hong Kong

Source：TVB《最強生命線》