If you have a hard bump on your ear, there are two main cases to consider: the first one may be a keloid, which will easily proliferate after ear piercing and form a keloid, affecting the aesthetics. In terms of treatment, you can remove it and perform isotope treatment at the same time, but there is still a certain chance of recurrence. If you have a keloid, you should not pierce your ears as much as possible. In the second case, the main consideration is the formation of auricular pseudocysts, which can lead to necrosis of the auricular cartilage over time, resulting in the formation of a particularly hard bag.