What should parents do if their child has a hemangioma? However, there is no definite conclusion on the extent to which the hemangioma has grown and receded, especially because non-specialists do not understand the specific meaning of observation: close observation and follow-up of changes. We do not understand that the remission of hemangioma is for the fully enlarged hemangioma. Nowadays, hemangioma disease has made great progress in basic and clinical research, and the treatment of hemangioma is no longer single, and the efficacy has been significantly improved, nowadays, the treatment methods can completely change the natural course of hemangioma, and give appropriate and safe interventions before its complete enlargement, so as to achieve more perfect results. A simple observation by a doctor can often cause many children with hemangioma to miss the best time for treatment. As the tumor rapidly increases and thickens, the treatment and outcome are not as good as they were at the beginning. It is not uncommon for tumors to grow from a rice-like spot to a large area. Therefore, we generally do not advocate passive observation, but rather early diagnosis, reasonable intervention, inhibition of growth, and promotion of regression, preferably in a nascent state.