Arterial ductus arteriosus in seven-month-old babies does not need surgery for the time being. Generally, it is necessary to wait until the baby reaches one year of age, and if the arterial ductus arteriosus is still not closed, then surgery is needed. The arterial ductus arteriosus of the baby needs regular review, along with the growth and development of the baby, the arterial ductus arteriosus of the baby has the possibility of closing by itself, so the baby before the age of one year does not need surgical treatment for the time being. 7 months baby arterial ductus arteriosus can be carried out first regular review of the heart ultrasound, if the arterial ductus arteriosus causes endocarditis, cardiac insufficiency, this situation will need surgical treatment. After one year of age, if the baby’s arterial conduit is still not closed, the possibility of self-closure is very small, more choice of surgical treatment. Before the age of one year, pay attention to the baby’s safety and protection, avoid cold and infection.