After a patient’s lip injury is accompanied by the formation of local hard nodes, generally according to the specific nature of the hard nodes and the patient’s own condition and other factors, whether the hard nodes can be completely absorbed can be analyzed. First, if the patient’s lip injury is accompanied by chronic scar fibrous tissue proliferation and the formation of hard nodes, which happens to belong to the scar body, the hard nodes of the lips in this case are not able to absorb by themselves. The hard nodes of the lips can be removed by local laser burning, liquid nitrogen freezing, or even surgical excision. Second, if the patient’s lips are injured with local hematoma formation is not a scar body, the hard nodes formed with the hematoma self-organization can be self-absorbed after two to three months, without serious infection and complications.