The hazards of swabbing the ears, such as destroying the protective effect of cerumen on the external auditory canal, damaging the skin and mucous membrane of the external auditory canal, and causing cerumen embolism. 1. Destroying the protective effect of cerumen on the external auditory canal: cerumen in the external auditory canal has a certain protective effect on the skin and mucous membrane of the external auditory canal, which can reduce the irritation of foreign bodies. Frequent use of cotton swabs to pull out the ears will reduce the protective effect of cerumen on the external auditory canal. 2. Damage to the skin of the external auditory canal: the skin of the external auditory canal is relatively weak, and it is easy to damage and cause infection by pulling out the ear with cotton swabs. 3. Causing cerumen embolism: When using cotton swabs to pull out ears, it may push the cerumen deeper into the external ear canal, and the accumulation of cerumen may cause cerumen embolism, which may even affect your hearing. Cotton swabs for ear pulling are more harmful, it is not recommended to pull out the ear frequently, scientific use of cotton swabs for ear pulling.