Bumps on the ears may be sebaceous cysts, which are related to blocked hair follicles and exuberant oil secretion. Avoid frequent and hard squeezing when it first appears, avoid drinking alcohol, eating spicy and stimulating food, and use compound polymyxin B ointment, adapalene gel or mupirocin ointment to treat it locally. If the cyst still exists after one month, surgical removal can be considered. Bumps on the ears may also be keloids, in which case they are usually related to trauma and ear piercing. If it is a keloid, this kind of thing is relatively hard, there is no obvious pain when pressed, and it grows more rapidly. After a clear diagnosis, it must be removed in time to avoid growing too large and affecting the appearance of the ear.