What are these lumps and why do they happen?
They are usually inside the lip so cannot be seen on the outside, however, if you feel the lip from the inside they can be felt. Sometimes too much product is injected, resulting in it looking for a space to sit in. If minor, they will disappear with time. If the lumps are more noticeable, we can inject a substance to make them disappear. They could occur with too thick a filler and they are more likely to show up with a patient who has thin lips as the space wherein you are injecting is small.