The precautions for ear piercing include before, during and after ear piercing. 1. Before ear piercing: Before ear piercing, you can first improve the relevant examination, or to clarify whether there are abnormal blood clotting function, skin diseases, scarring, and other unsuitable for ear piercing disease; secondly, ear piercing try to avoid menstruation, during the period of illness; and need to choose a regular, with the qualification of the operation of hospitals to carry out, to avoid choosing the street stalls. 2. When piercing ears: When piercing ears, it is necessary to ensure that the operation is carried out in aseptic conditions, so as to avoid causing some infectious diseases transmitted through the blood, such as viral hepatitis, syphilis, AIDS, etc.; secondly, when piercing ears, it is necessary to pay attention to the vertical piercing, to avoid pausing in the middle or changing the direction of the middle piercing, which may cause inconsistency. 3. After ear piercing: after ear piercing, we should pay attention to the local wound care, avoid ear piercing parts of water; every day you need to use medical iodine or alcohol for local disinfection; in addition, avoid wearing earrings too early. Therefore, if you need to have your ears pierced, it is best to go to a professional organization and have your ears pierced by a professional doctor or qualified personnel.