It is important to treat abscessed gums in 6 year olds, as if left untreated, recurring infections, affecting the health of permanent teeth, may occur. The 6-year-old child with pus in the gums is often considered apical inflammation, that is to say, pus in the gums suggests that the root of the tooth has been inflamed, and the inflammation of the milk teeth may affect the development of the permanent teeth below, so it is important to consult a doctor in time, so as to avoid delaying the child’s condition. Before treatment, X-rays are usually taken to determine whether the inflammation has affected the permanent tooth germ. If it has affected the permanent tooth germ, extraction of the affected tooth should be considered. If it has not affected the permanent tooth germ, the root of the tooth can be preserved, and active anti-infection treatment and root canal treatment can be carried out.