One-month-old babies with unenclosed foramen ovale can be a normal unfused phenomenon, tricuspid regurgitation can be caused by the tricuspid valve downward movement, both need to continue to observe, according to the condition of the adjustment of the treatment. 1. Ovarian foramen is not closed: Ovarian foramen is a physiological channel in embryonic period, under normal circumstances, it will be fused in 5~7 months after birth, if it is not fused, then it is called oval foramen is not closed. Therefore, one-month-old babies with unenclosed foramen ovale need to continue to be followed up for observation. The occurrence of unenclosed foramen ovale has a small effect on the body, and no treatment may be required when asymptomatic. Abnormalities can be treated with interventional therapy and have a better prognosis. 2. Tricuspid regurgitation: tricuspid valve downward deformity is the most common cause of tricuspid regurgitation in one-month-old babies, and it is necessary to assess the degree of tricuspid regurgitation to study the treatment plan. If mild regurgitation without deformity does not require treatment, regular observation can be done, and if the tricuspid valve regurgitation flow is more, then it is necessary to repair the valve with surgery. One-month-old baby oval hole is not closed and tricuspid regurgitation is not necessarily related to the degree of both mild follow-up observation can be, and active treatment has a good prognosis. It is recommended not to be too anxious, follow the doctor’s instructions to review the treatment can be.