Whether the ear piercing can be closed overnight depends on the specific situation of the patient, mainly in the following cases: 1. If the patient has had the ear piercing for a long time and there is no local infection or redness, the earring or stud will not be closed overnight. 2. Even if there is closure, the patient can gently put the stud through the next day, provided there is no local infection. 3. If the patient has local infection after the piercing, local granulomatosis or scar hyperplasia, local exudation, pus and other related changes, it is not recommended that the patient take the stud or earring down, and after taking it down for one night, there is a possibility that the local area will appear closed when wearing the stud the next day. It is possible that the earrings may close when worn the next day.