Many young people pierce their ears and wear earrings on the cartilage of their ears for aesthetic reasons. If the infection is repeated, it will lead to the formation of keloid in the auricle, and the keloid may gradually increase in size over time, affecting the beauty of the ear. After piercing the ear, you should pay attention to active disinfection to avoid infection, and do not touch the ear piercing with your hands often. You can also wear silver or gold jewelry, and try not to wear allergic earrings.