To get an ideal hearing aid to hear clear speech and beautiful music again, it is best to visit an otology (hearing center), ask an experienced otologist to examine and diagnose you, and under their guidance, make the selection. First, the necessary tests need to be performed to figure out what is causing the hearing loss, and the extent of the hearing loss and whether recovery can be achieved through surgery or treatment. If it cannot be cured, those who have an average hearing loss of 40dB or more generally have indications for hearing aids. Secondly, according to the patient’s age, financial ability, work and study environment, the types of cassette, behind-the-ear, in-the-ear, canal and complete ear canal can be chosen; according to the hearing loss status, ordinary movement mis computer programmable movement can also be chosen. At present, the most suitable hearing aid for patients in clinical practice is the customized in-the-ear, in-canal and full canal hearing aid. Because they are customized according to the size and shape of the patient’s ear canal, they have the advantages of good sealing, easy to wear, no obstruction to movement, clear sound and no noise, etc., and are loved by patients. After choosing and fitting a good hearing aid, the doctor will also guide you how to use and maintain it. After another 2-3 weeks of adaptation and training, you may feel completely different about your surroundings, bringing convenience to your study and work and a happier and more fulfilling life.