When the 80-year-old gentleman led his family, including his filial son and daughter, into the consultation room. Wearing hearing aids can only hear the sound, but not the words, and the doctor’s examination reveals severe deafness in both ears. When the whole family expects to hear and communicate at any cost, has it occurred to anyone that there are any early signs of deafness in the elderly, and that some early medication and health care advice can be given to avoid the premature arrival of today’s conditions. When a young patient with severe deafness on one side suddenly also has severe deafness in the opposite ear, hearing sounds, unable to communicate and affecting life and work, have you ever thought about why the two ears do not communicate with each other, why the problem in one ear affects the other ear, what can doctors do? What can doctors do? What can you do? How can you prevent it? Can we avoid the premature arrival of today’s condition. When a child with mumps, can treatment of mumps take into account that the mumps virus may cause damage to both ears or may not be able to, some protective measures, even though they may be ineffective, may have tried their best to avoid the premature arrival of today’s untreatable, and unacceptable, facts. When we are faced with a sudden illness and told that there is no cure, helpless, complaining about the injustice of fate, hoping that a cure will work, hating medical incompetence and doctors’ inability to return, some scientific knowledge will surely benefit ourselves and our loved ones around us. Learn to face difficulties and learn to face others, even yourself, with a kind heart, not only for yourself, but also for your future generations.